Search a number
-
+
54102553 = 139389227
BaseRepresentation
bin1100111001100…
…0101000011001
310202210200202021
43032120220121
5102322240203
65211334441
71224602251
oct316305031
9122720667
1054102553
11285a305a
1216151421
13b29385b
147284961
154b3a5bd
hex3398a19

54102553 has 4 divisors (see below), whose sum is σ = 54491920. Its totient is φ = 53713188.

The previous prime is 54102541. The next prime is 54102577. The reversal of 54102553 is 35520145.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54102553 - 213 = 54094361 is a prime.

It is a super-2 number, since 2×541025532 = 5854172482235618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54102523) 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, 194475 + ... + 194752.

It is an arithmetic number, because the mean of its divisors is an integer number (13622980).

Almost surely, 254102553 is an apocalyptic number.

It is an amenable number.

54102553 is a deficient number, since it is larger than the sum of its proper divisors (389367).

54102553 is a wasteful number, since it uses less digits than its factorization.

54102553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389366.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 54102553 is about 7355.4437663543. The cubic root of 54102553 is about 378.2154389961.

Adding to 54102553 its reverse (35520145), we get a palindrome (89622698).

The spelling of 54102553 in words is "fifty-four million, one hundred two thousand, five hundred fifty-three".

Divisors: 1 139 389227 54102553