313278552 has 24 divisors (see below), whose sum is σ = 848462940. Its totient is φ = 104426160.

The previous prime is 313278491. The next prime is 313278577. The reversal of 313278552 is 255872313.

It is a happy number.

313278552 is a `hidden beast` number, since 3 + 1 + 32 + 78 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×313278552² = 196286902286433408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2175474 + ... + 2175617.

Almost surely, 2^313278552 is an apocalyptic number.

It is an amenable number.

313278552 is an abundant number, since it is smaller than the sum of its proper divisors (535184388).

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

313278552 is a wasteful number, since it uses less digits than its factorization.

313278552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351103 (or 4351096 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 313278552 is about 17699.6766072152. The cubic root of 313278552 is about 679.1674875288.

The spelling of 313278552 in words is "three hundred thirteen million, two hundred seventy-eight thousand, five hundred fifty-two".