51025622431 has 8 divisors (see below), whose sum is σ = 58376975904. Its totient is φ = 43689763680.

The previous prime is 51025622423. The next prime is 51025622443. The reversal of 51025622431 is 13422652015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51025622431 - 2³ = 51025622423 is a prime.

It is a super-2 number, since 2×51025622431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51025622393 and 51025622402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51025622411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3866620 + ... + 3879793.

It is an arithmetic number, because the mean of its divisors is an integer number (7297121988).

Almost surely, 2^51025622431 is an apocalyptic number.

51025622431 is a deficient number, since it is larger than the sum of its proper divisors (7351353473).

51025622431 is an equidigital number, since it uses as much as digits as its factorization.

51025622431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747361.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 51025622431 in words is "fifty-one billion, twenty-five million, six hundred twenty-two thousand, four hundred thirty-one".