630523000 has 32 divisors (see below), whose sum is σ = 1475426160. Its totient is φ = 252208800.

The previous prime is 630522983. The next prime is 630523007. The reversal of 630523000 is 325036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630523007) 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, 314262 + ... + 316261.

Almost surely, 2^630523000 is an apocalyptic number.

It is an amenable number.

630523000 is an abundant number, since it is smaller than the sum of its proper divisors (844903160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630523000 is a wasteful number, since it uses less digits than its factorization.

630523000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630544 (or 630530 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 630523000 is about 25110.2170440640. The cubic root of 630523000 is about 857.4990437647.

Adding to 630523000 its reverse (325036), we get a palindrome (630848036).

The spelling of 630523000 in words is "six hundred thirty million, five hundred twenty-three thousand".