1056253735515 has 32 divisors (see below), whose sum is σ = 1858879636992. Its totient is φ = 512123013600.

The previous prime is 1056253735513. The next prime is 1056253735517. The reversal of 1056253735515 is 5155373526501.

It is an interprime number because it is at equal distance from previous prime (1056253735513) and next prime (1056253735517).

It is not a de Polignac number, because 1056253735515 - 2¹ = 1056253735513 is a prime.

It is a super-2 number, since 2×1056253735515² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056253735513) 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, 26432671 + ... + 26472600.

It is an arithmetic number, because the mean of its divisors is an integer number (58089988656).

Almost surely, 2^{1056253735515} is an apocalyptic number.

1056253735515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1056253735515 is a deficient number, since it is larger than the sum of its proper divisors (802625901477).

1056253735515 is an equidigital number, since it uses as much as digits as its factorization.

1056253735515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52905312 (or 52905290 counting only the distinct ones).

The product of its (nonzero) digits is 2362500, while the sum is 48.

The spelling of 1056253735515 in words is "one trillion, fifty-six billion, two hundred fifty-three million, seven hundred thirty-five thousand, five hundred fifteen".