625404131563 has 4 divisors (see below), whose sum is σ = 652595615568. Its totient is φ = 598212647560.

The previous prime is 625404131507. The next prime is 625404131591. The reversal of 625404131563 is 365131404526.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 625404131563 - 2³⁷ = 487965178091 is a prime.

It is a super-2 number, since 2×625404131563² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (625404137563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13595741968 + ... + 13595742013.

It is an arithmetic number, because the mean of its divisors is an integer number (163148903892).

Almost surely, 2^625404131563 is an apocalyptic number.

625404131563 is a deficient number, since it is larger than the sum of its proper divisors (27191484005).

625404131563 is a wasteful number, since it uses less digits than its factorization.

625404131563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27191484004.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 625404131563 in words is "six hundred twenty-five billion, four hundred four million, one hundred thirty-one thousand, five hundred sixty-three".