5555522157 has 32 divisors (see below), whose sum is σ = 8262990720. Its totient is φ = 3299512320.

The previous prime is 5555522129. The next prime is 5555522197. The reversal of 5555522157 is 7512255555.

It is a happy number.

It is not a de Polignac number, because 5555522157 - 2⁸ = 5555521901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555522117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1813407 + ... + 1816467.

It is an arithmetic number, because the mean of its divisors is an integer number (258218460).

Almost surely, 2^5555522157 is an apocalyptic number.

5555522157 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

5555522157 is a deficient number, since it is larger than the sum of its proper divisors (2707468563).

5555522157 is a wasteful number, since it uses less digits than its factorization.

5555522157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973.

The product of its digits is 437500, while the sum is 42.

The square root of 5555522157 is about 74535.3752053345. The cubic root of 5555522157 is about 1771.0940661711.

The spelling of 5555522157 in words is "five billion, five hundred fifty-five million, five hundred twenty-two thousand, one hundred fifty-seven".