625465866496 has 27 divisors (see below), whose sum is σ = 1248513765681. Its totient is φ = 312726606336.

The previous prime is 625465866491. The next prime is 625465866499. The reversal of 625465866496 is 694668564526.

The square root of 625465866496 is 790864.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 384816752896 + 240649113600 = 620336^2 + 490560^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625465866491) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12629110 + ... + 12678538.

Almost surely, 2^625465866496 is an apocalyptic number.

625465866496 is the 790864-th square number.

It is an amenable number.

625465866496 is a deficient number, since it is larger than the sum of its proper divisors (623047899185).

625465866496 is an frugal number, since it uses more digits than its factorization.

625465866496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98874 (or 49431 counting only the distinct ones).

The product of its digits is 447897600, while the sum is 67.

The spelling of 625465866496 in words is "six hundred twenty-five billion, four hundred sixty-five million, eight hundred sixty-six thousand, four hundred ninety-six".