630455085 has 48 divisors (see below), whose sum is σ = 1190170800. Its totient is φ = 306865152.

The previous prime is 630455071. The next prime is 630455101. The reversal of 630455085 is 580554036.

It can be written as a sum of positive squares in 8 ways, for example, as 2802276 + 627652809 = 1674^2 + 25053^2 .

It is not a de Polignac number, because 630455085 - 2⁸ = 630454829 is a prime.

It is a super-2 number, since 2×630455085² = 794947228404714450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46011 + ... + 58119.

It is an arithmetic number, because the mean of its divisors is an integer number (24795225).

Almost surely, 2^630455085 is an apocalyptic number.

630455085 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

630455085 is a deficient number, since it is larger than the sum of its proper divisors (559715715).

630455085 is a wasteful number, since it uses less digits than its factorization.

630455085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12222 (or 12219 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 630455085 is about 25108.8646696739. The cubic root of 630455085 is about 857.4682549652.

The spelling of 630455085 in words is "six hundred thirty million, four hundred fifty-five thousand, eighty-five".