1513890025 has 12 divisors (see below), whose sum is σ = 1881964492. Its totient is φ = 1208053440.

The previous prime is 1513890017. The next prime is 1513890031. The reversal of 1513890025 is 5200983151.

It can be written as a sum of positive squares in 6 ways, for example, as 8139609 + 1505750416 = 2853^2 + 38804^2 .

It is not a de Polignac number, because 1513890025 - 2³ = 1513890017 is a prime.

It is a Duffinian 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, 66342 + ... + 86191.

Almost surely, 2^1513890025 is an apocalyptic number.

It is an amenable number.

1513890025 is a deficient number, since it is larger than the sum of its proper divisors (368074467).

1513890025 is a wasteful number, since it uses less digits than its factorization.

1513890025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152940 (or 152935 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1513890025 is about 38908.7396994557. The cubic root of 1513890025 is about 1148.2367496543.

The spelling of 1513890025 in words is "one billion, five hundred thirteen million, eight hundred ninety thousand, twenty-five".