620566425 has 36 divisors (see below), whose sum is σ = 1130366640. Its totient is φ = 325352160.

The previous prime is 620566417. The next prime is 620566433. The reversal of 620566425 is 524665026.

620566425 is a `hidden beast` number, since 6 + 2 + 0 + 5 + 6 + 642 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (620566417) and next prime (620566433).

It is not a de Polignac number, because 620566425 - 2³ = 620566417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620566425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10099 + ... + 36648.

Almost surely, 2^620566425 is an apocalyptic number.

It is an amenable number.

620566425 is a deficient number, since it is larger than the sum of its proper divisors (509800215).

620566425 is a wasteful number, since it uses less digits than its factorization.

620566425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46822 (or 46814 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 620566425 is about 24911.1706870633. The cubic root of 620566425 is about 852.9614922325.

The spelling of 620566425 in words is "six hundred twenty million, five hundred sixty-six thousand, four hundred twenty-five".