620145625 has 20 divisors (see below), whose sum is σ = 845391888. Its totient is φ = 451010000.

The previous prime is 620145563. The next prime is 620145629. The reversal of 620145625 is 526541026.

It is not a de Polignac number, because 620145625 - 2¹³ = 620137433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620145629) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38227 + ... + 51976.

Almost surely, 2^620145625 is an apocalyptic number.

It is an amenable number.

620145625 is a deficient number, since it is larger than the sum of its proper divisors (225246263).

620145625 is an equidigital number, since it uses as much as digits as its factorization.

620145625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90234 (or 90219 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 620145625 is about 24902.7232446574. The cubic root of 620145625 is about 852.7686537008.

The spelling of 620145625 in words is "six hundred twenty million, one hundred forty-five thousand, six hundred twenty-five".