1015313455525 has 12 divisors (see below), whose sum is σ = 1259149738500. Its totient is φ = 812146858880.

The previous prime is 1015313455517. The next prime is 1015313455549. The reversal of 1015313455525 is 5255543135101.

It can be written as a sum of positive squares in 6 ways, for example, as 393412455076 + 621901000449 = 627226^2 + 788607^2 .

It is not a de Polignac number, because 1015313455525 - 2³ = 1015313455517 is a prime.

It is a super-2 number, since 2×1015313455525² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2398000 + ... + 2789449.

It is an arithmetic number, because the mean of its divisors is an integer number (104929144875).

Almost surely, 2^{1015313455525} is an apocalyptic number.

It is an amenable number.

1015313455525 is a deficient number, since it is larger than the sum of its proper divisors (243836282975).

1015313455525 is an equidigital number, since it uses as much as digits as its factorization.

1015313455525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195288 (or 5195283 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 40.

The spelling of 1015313455525 in words is "one trillion, fifteen billion, three hundred thirteen million, four hundred fifty-five thousand, five hundred twenty-five".