578663252 has 6 divisors (see below), whose sum is σ = 1012660698. Its totient is φ = 289331624.

The previous prime is 578663243. The next prime is 578663291. The reversal of 578663252 is 252366875.

It can be written as a sum of positive squares in only one way, i.e., 420004036 + 158659216 = 20494^2 + 12596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72332903 + ... + 72332910.

It is an arithmetic number, because the mean of its divisors is an integer number (168776783).

Almost surely, 2^578663252 is an apocalyptic number.

It is an amenable number.

578663252 is a deficient number, since it is larger than the sum of its proper divisors (433997446).

578663252 is a wasteful number, since it uses less digits than its factorization.

578663252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144665817 (or 144665815 counting only the distinct ones).

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

The square root of 578663252 is about 24055.4204286685. The cubic root of 578663252 is about 833.3139160631.

The spelling of 578663252 in words is "five hundred seventy-eight million, six hundred sixty-three thousand, two hundred fifty-two".