52264278 has 80 divisors (see below), whose sum is σ = 129286080. Its totient is φ = 15649200.

The previous prime is 52264259. The next prime is 52264309. The reversal of 52264278 is 87246225.

52264278 is a `hidden beast` number, since 5 + 2 + 2 + 642 + 7 + 8 = 666.

It is a super-2 number, since 2×52264278² = 5463109509722568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 247593 + ... + 247803.

It is an arithmetic number, because the mean of its divisors is an integer number (1616076).

Almost surely, 2^52264278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52264278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64643040).

52264278 is an abundant number, since it is smaller than the sum of its proper divisors (77021802).

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

52264278 is a wasteful number, since it uses less digits than its factorization.

52264278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 366 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 52264278 is about 7229.4037098505. The cubic root of 52264278 is about 373.8823683746.

The spelling of 52264278 in words is "fifty-two million, two hundred sixty-four thousand, two hundred seventy-eight".