501630456625 has 16 divisors (see below), whose sum is σ = 626385024720. Its totient is φ = 401079868800.

The previous prime is 501630456541. The next prime is 501630456659. The reversal of 501630456625 is 526654036105.

It can be written as a sum of positive squares in 8 ways, for example, as 135711928881 + 365918527744 = 368391^2 + 604912^2 .

It is a de Polignac number, because none of the positive numbers 2^k-501630456625 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897964 + ... + 1345213.

It is an arithmetic number, because the mean of its divisors is an integer number (39149064045).

Almost surely, 2^501630456625 is an apocalyptic number.

It is an amenable number.

501630456625 is a deficient number, since it is larger than the sum of its proper divisors (124754568095).

501630456625 is a wasteful number, since it uses less digits than its factorization.

501630456625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244981 (or 2244971 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 501630456625 in words is "five hundred one billion, six hundred thirty million, four hundred fifty-six thousand, six hundred twenty-five".