630966553 has 8 divisors (see below), whose sum is σ = 723116160. Its totient is φ = 539319840.

The previous prime is 630966547. The next prime is 630966559. The reversal of 630966553 is 355669036.

630966553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (630966547) and next prime (630966559).

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 630966553 - 2²¹ = 628869401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630966559) 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, 123028 + ... + 128053.

It is an arithmetic number, because the mean of its divisors is an integer number (90389520).

Almost surely, 2^630966553 is an apocalyptic number.

It is an amenable number.

630966553 is a deficient number, since it is larger than the sum of its proper divisors (92149607).

630966553 is a wasteful number, since it uses less digits than its factorization.

630966553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251447.

The product of its (nonzero) digits is 437400, while the sum is 43.

The square root of 630966553 is about 25119.0476133153. The cubic root of 630966553 is about 857.7000711240.

The spelling of 630966553 in words is "six hundred thirty million, nine hundred sixty-six thousand, five hundred fifty-three".