623015408725 has 6 divisors (see below), whose sum is σ = 772539106850. Its totient is φ = 498412326960.

The previous prime is 623015408707. The next prime is 623015408731. The reversal of 623015408725 is 527804510326.

It can be written as a sum of positive squares in 3 ways, for example, as 155632617009 + 467382791716 = 394503^2 + 683654^2 .

It is not a de Polignac number, because 623015408725 - 2³⁷ = 485576455253 is a prime.

It is a super-2 number, since 2×623015408725² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12460308150 + ... + 12460308199.

Almost surely, 2^623015408725 is an apocalyptic number.

It is an amenable number.

623015408725 is a deficient number, since it is larger than the sum of its proper divisors (149523698125).

623015408725 is a wasteful number, since it uses less digits than its factorization.

623015408725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24920616359 (or 24920616354 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 623015408725 in words is "six hundred twenty-three billion, fifteen million, four hundred eight thousand, seven hundred twenty-five".