630425957 has 4 divisors (see below), whose sum is σ = 720486816. Its totient is φ = 540365100.

The previous prime is 630425933. The next prime is 630425959. The reversal of 630425957 is 759524036.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 630425957 - 2¹⁴ = 630409573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630425959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45030419 + ... + 45030432.

It is an arithmetic number, because the mean of its divisors is an integer number (180121704).

Almost surely, 2^630425957 is an apocalyptic number.

It is an amenable number.

630425957 is a deficient number, since it is larger than the sum of its proper divisors (90060859).

630425957 is an equidigital number, since it uses as much as digits as its factorization.

630425957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90060858.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 630425957 is about 25108.2846287834. The cubic root of 630425957 is about 857.4550493087.

The spelling of 630425957 in words is "six hundred thirty million, four hundred twenty-five thousand, nine hundred fifty-seven".