51235012425 has 24 divisors (see below), whose sum is σ = 85038191136. Its totient is φ = 27219005440.

The previous prime is 51235012363. The next prime is 51235012429. The reversal of 51235012425 is 52421053215.

It is not a de Polignac number, because 51235012425 - 2⁹ = 51235011913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51235012392 and 51235012401.

It is not an unprimeable number, because it can be changed into a prime (51235012429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1309779 + ... + 1348328.

It is an arithmetic number, because the mean of its divisors is an integer number (3543257964).

Almost surely, 2^51235012425 is an apocalyptic number.

It is an amenable number.

51235012425 is a deficient number, since it is larger than the sum of its proper divisors (33803178711).

51235012425 is a wasteful number, since it uses less digits than its factorization.

51235012425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658377 (or 2658372 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 51235012425 in words is "fifty-one billion, two hundred thirty-five million, twelve thousand, four hundred twenty-five".