625606212465 has 24 divisors (see below), whose sum is σ = 1167798264360. Its totient is φ = 307990750464.

The previous prime is 625606212457. The next prime is 625606212479. The reversal of 625606212465 is 564212606526.

625606212465 is a `hidden beast` number, since 6 + 2 + 560 + 6 + 2 + 1 + 24 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25326812736 + 600279399729 = 159144^2 + 774777^2 .

It is not a de Polignac number, because 625606212465 - 2³ = 625606212457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 625606212465.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 534705580 + ... + 534706749.

It is an arithmetic number, because the mean of its divisors is an integer number (48658261015).

Almost surely, 2^625606212465 is an apocalyptic number.

625606212465 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

625606212465 is a deficient number, since it is larger than the sum of its proper divisors (542192051895).

625606212465 is a wasteful number, since it uses less digits than its factorization.

625606212465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069412353 (or 1069412350 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

It can be divided in two parts, 62560 and 6212465, that added together give a square (6275025 = 2505²).

The spelling of 625606212465 in words is "six hundred twenty-five billion, six hundred six million, two hundred twelve thousand, four hundred sixty-five".