51004530025 has 12 divisors (see below), whose sum is σ = 63261885132. Its totient is φ = 40793128640.

The previous prime is 51004530011. The next prime is 51004530053. The reversal of 51004530025 is 52003540015.

It can be written as a sum of positive squares in 6 ways, for example, as 4943214864 + 46061315161 = 70308^2 + 214619^2 .

It is not a de Polignac number, because 51004530025 - 2²⁵ = 50970975593 is a prime.

It is a super-2 number, since 2×51004530025² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162502 + ... + 358351.

It is an arithmetic number, because the mean of its divisors is an integer number (5271823761).

Almost surely, 2^51004530025 is an apocalyptic number.

It is an amenable number.

51004530025 is a deficient number, since it is larger than the sum of its proper divisors (12257355107).

51004530025 is a wasteful number, since it uses less digits than its factorization.

51004530025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524780 (or 524775 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 51004530025 in words is "fifty-one billion, four million, five hundred thirty thousand, twenty-five".