51630214025615 has 8 divisors (see below), whose sum is σ = 62085601837440. Its totient is φ = 41217941216032.

The previous prime is 51630214025581. The next prime is 51630214025617. The reversal of 51630214025615 is 51652041203615.

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 51630214025615 - 2²² = 51630209831311 is a prime.

It is a super-2 number, since 2×51630214025615² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51630214025617) 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, 10778747924 + ... + 10778752713.

It is an arithmetic number, because the mean of its divisors is an integer number (7760700229680).

Almost surely, 2^{51630214025615} is an apocalyptic number.

51630214025615 is a deficient number, since it is larger than the sum of its proper divisors (10455387811825).

51630214025615 is a wasteful number, since it uses less digits than its factorization.

51630214025615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21557501121.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 51630214025615 in words is "fifty-one trillion, six hundred thirty billion, two hundred fourteen million, twenty-five thousand, six hundred fifteen".