630631055 has 8 divisors (see below), whose sum is σ = 756920112. Its totient is φ = 504396288.

The previous prime is 630631051. The next prime is 630631063. The reversal of 630631055 is 550136036.

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 630631055 - 2² = 630631051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630631051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19172 + ... + 40358.

It is an arithmetic number, because the mean of its divisors is an integer number (94615014).

Almost surely, 2^630631055 is an apocalyptic number.

630631055 is a deficient number, since it is larger than the sum of its proper divisors (126289057).

630631055 is a wasteful number, since it uses less digits than its factorization.

630631055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27145.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 630631055 is about 25112.3685661070. The cubic root of 630631055 is about 857.5480252011.

The spelling of 630631055 in words is "six hundred thirty million, six hundred thirty-one thousand, fifty-five".