864752552 has 16 divisors (see below), whose sum is σ = 1622765940. Its totient is φ = 432014976.

The previous prime is 864752543. The next prime is 864752561. The reversal of 864752552 is 255257468.

It is an interprime number because it is at equal distance from previous prime (864752543) and next prime (864752561).

It can be written as a sum of positive squares in 2 ways, for example, as 777628996 + 87123556 = 27886^2 + 9334^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34853 + ... + 54260.

Almost surely, 2^864752552 is an apocalyptic number.

It is an amenable number.

864752552 is a deficient number, since it is larger than the sum of its proper divisors (758013388).

864752552 is a wasteful number, since it uses less digits than its factorization.

864752552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90332 (or 90328 counting only the distinct ones).

The product of its digits is 672000, while the sum is 44.

The square root of 864752552 is about 29406.6752966057. The cubic root of 864752552 is about 952.7170791364.

The spelling of 864752552 in words is "eight hundred sixty-four million, seven hundred fifty-two thousand, five hundred fifty-two".