1056255157 has 4 divisors (see below), whose sum is σ = 1090327936. Its totient is φ = 1022182380.

The previous prime is 1056255149. The next prime is 1056255173. The reversal of 1056255157 is 7515526501.

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 1056255157 - 2³ = 1056255149 is a prime.

It is a super-2 number, since 2×1056255157² = 2231349913378189298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056255107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17036343 + ... + 17036404.

It is an arithmetic number, because the mean of its divisors is an integer number (272581984).

Almost surely, 2^1056255157 is an apocalyptic number.

It is an amenable number.

1056255157 is a deficient number, since it is larger than the sum of its proper divisors (34072779).

1056255157 is an equidigital number, since it uses as much as digits as its factorization.

1056255157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34072778.

The product of its (nonzero) digits is 52500, while the sum is 37.

The square root of 1056255157 is about 32500.0793383647. The cubic root of 1056255157 is about 1018.4106855369.

The spelling of 1056255157 in words is "one billion, fifty-six million, two hundred fifty-five thousand, one hundred fifty-seven".