51350042525 has 6 divisors (see below), whose sum is σ = 63674052762. Its totient is φ = 41080034000.

The previous prime is 51350042521. The next prime is 51350042537. The reversal of 51350042525 is 52524005315.

It can be written as a sum of positive squares in 3 ways, for example, as 358079929 + 50991962596 = 18923^2 + 225814^2 .

It is not a de Polignac number, because 51350042525 - 2² = 51350042521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51350042491 and 51350042500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51350042521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1027000826 + ... + 1027000875.

It is an arithmetic number, because the mean of its divisors is an integer number (10612342127).

Almost surely, 2^51350042525 is an apocalyptic number.

It is an amenable number.

51350042525 is a deficient number, since it is larger than the sum of its proper divisors (12324010237).

51350042525 is a wasteful number, since it uses less digits than its factorization.

51350042525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054001711 (or 2054001706 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 51350042525 in words is "fifty-one billion, three hundred fifty million, forty-two thousand, five hundred twenty-five".