51268125530 has 16 divisors (see below), whose sum is σ = 97711016040. Its totient is φ = 19300941312.

The previous prime is 51268125523. The next prime is 51268125563. The reversal of 51268125530 is 3552186215.

It can be written as a sum of positive squares in 4 ways, for example, as 32277356281 + 18990769249 = 179659^2 + 137807^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150788435 + ... + 150788774.

Almost surely, 2^51268125530 is an apocalyptic number.

51268125530 is a deficient number, since it is larger than the sum of its proper divisors (46442890510).

51268125530 is a wasteful number, since it uses less digits than its factorization.

51268125530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301577233.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 51268125530 in words is "fifty-one billion, two hundred sixty-eight million, one hundred twenty-five thousand, five hundred thirty".