630625553 has 8 divisors (see below), whose sum is σ = 633150720. Its totient is φ = 628106400.

The previous prime is 630625547. The next prime is 630625559. The reversal of 630625553 is 355526036.

It is an interprime number because it is at equal distance from previous prime (630625547) and next prime (630625559).

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 630625553 - 2⁴ = 630625537 is a prime.

It is a super-3 number, since 3×630625553³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630625559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349253 + ... + 351053.

It is an arithmetic number, because the mean of its divisors is an integer number (79143840).

Almost surely, 2^630625553 is an apocalyptic number.

It is an amenable number.

630625553 is a deficient number, since it is larger than the sum of its proper divisors (2525167).

630625553 is a wasteful number, since it uses less digits than its factorization.

630625553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007.

The product of its (nonzero) digits is 81000, while the sum is 35.

The square root of 630625553 is about 25112.2590182564. The cubic root of 630625553 is about 857.5455312744.

The spelling of 630625553 in words is "six hundred thirty million, six hundred twenty-five thousand, five hundred fifty-three".