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5172456253 = 17509295417
BaseRepresentation
bin1001101000100110…
…10110101100111101
3111100110220000001211
410310103112230331
541043122100003
62213131404421
7242115103246
oct46423265475
914313800054
105172456253
112214797a38
1210042b3711
136457c0c03
14370d53ccd
1520416e96d
hex1344d6b3d

5172456253 has 4 divisors (see below), whose sum is σ = 5172769180. Its totient is φ = 5172143328.

The previous prime is 5172456251. The next prime is 5172456271. The reversal of 5172456253 is 3526542715.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3526542715 = 5705308543.

It can be written as a sum of positive squares in 2 ways, for example, as 1686498489 + 3485957764 = 41067^2 + 59042^2 .

It is a cyclic number.

It is not a de Polignac number, because 5172456253 - 21 = 5172456251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172456251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130200 + ... + 165217.

It is an arithmetic number, because the mean of its divisors is an integer number (1293192295).

Almost surely, 25172456253 is an apocalyptic number.

It is an amenable number.

5172456253 is a deficient number, since it is larger than the sum of its proper divisors (312927).

5172456253 is a wasteful number, since it uses less digits than its factorization.

5172456253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312926.

The product of its digits is 252000, while the sum is 40.

The square root of 5172456253 is about 71919.7904126535. The cubic root of 5172456253 is about 1729.4138873435.

Adding to 5172456253 its reverse (3526542715), we get a palindrome (8698998968).

The spelling of 5172456253 in words is "five billion, one hundred seventy-two million, four hundred fifty-six thousand, two hundred fifty-three".

Divisors: 1 17509 295417 5172456253