5155646453 has 4 divisors (see below), whose sum is σ = 5155790220. Its totient is φ = 5155502688.

The previous prime is 5155646381. The next prime is 5155646467. The reversal of 5155646453 is 3546465515.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3713317969 + 1442328484 = 60937^2 + 37978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5155646453 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 (5155640453) 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, 30851 + ... + 106127.

It is an arithmetic number, because the mean of its divisors is an integer number (1288947555).

Almost surely, 2^5155646453 is an apocalyptic number.

It is an amenable number.

5155646453 is a deficient number, since it is larger than the sum of its proper divisors (143767).

5155646453 is an equidigital number, since it uses as much as digits as its factorization.

5155646453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143766.

The product of its digits is 1080000, while the sum is 44.

The square root of 5155646453 is about 71802.8303968583. The cubic root of 5155646453 is about 1727.5383985662.

The spelling of 5155646453 in words is "five billion, one hundred fifty-five million, six hundred forty-six thousand, four hundred fifty-three".