305313130525 has 12 divisors (see below), whose sum is σ = 407710457812. Its totient is φ = 225462003840.

The previous prime is 305313130519. The next prime is 305313130541. The reversal of 305313130525 is 525031313503.

It can be written as a sum of positive squares in 6 ways, for example, as 134018959396 + 171294171129 = 366086^2 + 413877^2 .

It is not a de Polignac number, because 305313130525 - 2²⁵ = 305279576093 is a prime.

It is a super-2 number, since 2×305313130525² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

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, 469712184 + ... + 469712833.

Almost surely, 2^305313130525 is an apocalyptic number.

It is an amenable number.

305313130525 is a deficient number, since it is larger than the sum of its proper divisors (102397327287).

305313130525 is a wasteful number, since it uses less digits than its factorization.

305313130525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939425040 (or 939425035 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 31.

The spelling of 305313130525 in words is "three hundred five billion, three hundred thirteen million, one hundred thirty thousand, five hundred twenty-five".