51212024125 has 16 divisors (see below), whose sum is σ = 63923865408. Its totient is φ = 40962402000.

The previous prime is 51212024099. The next prime is 51212024159. The reversal of 51212024125 is 52142021215.

It is not a de Polignac number, because 51212024125 - 2⁵ = 51212024093 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51212024125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743394 + ... + 809356.

It is an arithmetic number, because the mean of its divisors is an integer number (3995241588).

Almost surely, 2^51212024125 is an apocalyptic number.

It is an amenable number.

51212024125 is a deficient number, since it is larger than the sum of its proper divisors (12711841283).

51212024125 is an equidigital number, since it uses as much as digits as its factorization.

51212024125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72189 (or 72179 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The spelling of 51212024125 in words is "fifty-one billion, two hundred twelve million, twenty-four thousand, one hundred twenty-five".