247564952 has 16 divisors (see below), whose sum is σ = 468971160. Its totient is φ = 122505984.

The previous prime is 247564951. The next prime is 247564957. The reversal of 247564952 is 259465742.

It is a super-2 number, since 2×247564952² = 122576810917524608, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247564951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158738 + ... + 160289.

Almost surely, 2^247564952 is an apocalyptic number.

It is an amenable number.

247564952 is a deficient number, since it is larger than the sum of its proper divisors (221406208).

247564952 is a wasteful number, since it uses less digits than its factorization.

247564952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319130 (or 319126 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 247564952 is about 15734.1968972045. The cubic root of 247564952 is about 627.9085360460.

The spelling of 247564952 in words is "two hundred forty-seven million, five hundred sixty-four thousand, nine hundred fifty-two".