625974655 has 8 divisors (see below), whose sum is σ = 752166432. Its totient is φ = 500115168.

The previous prime is 625974649. The next prime is 625974689. The reversal of 625974655 is 556479526.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 625974655 - 2¹³ = 625966463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 625974599 and 625974608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78907 + ... + 86476.

It is an arithmetic number, because the mean of its divisors is an integer number (94020804).

Almost surely, 2^625974655 is an apocalyptic number.

625974655 is a deficient number, since it is larger than the sum of its proper divisors (126191777).

625974655 is a wasteful number, since it uses less digits than its factorization.

625974655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166145.

The product of its digits is 2268000, while the sum is 49.

The square root of 625974655 is about 25019.4855063009. The cubic root of 625974655 is about 855.4321789415.

The spelling of 625974655 in words is "six hundred twenty-five million, nine hundred seventy-four thousand, six hundred fifty-five".