1055257507 has 8 divisors (see below), whose sum is σ = 1138414176. Its totient is φ = 974443392.

The previous prime is 1055257493. The next prime is 1055257519. The reversal of 1055257507 is 7057525501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055257507 is a prime.

It is a super-2 number, since 2×1055257507² = 2227136812159710098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1055257537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584703 + ... + 586504.

It is an arithmetic number, because the mean of its divisors is an integer number (142301772).

Almost surely, 2^1055257507 is an apocalyptic number.

1055257507 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1055257507 is a deficient number, since it is larger than the sum of its proper divisors (83156669).

1055257507 is a wasteful number, since it uses less digits than its factorization.

1055257507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171277.

The product of its (nonzero) digits is 61250, while the sum is 37.

The square root of 1055257507 is about 32484.7272883735. The cubic root of 1055257507 is about 1018.0899494398.

The spelling of 1055257507 in words is "one billion, fifty-five million, two hundred fifty-seven thousand, five hundred seven".