52278412 has 6 divisors (see below), whose sum is σ = 91487228. Its totient is φ = 26139204.

The previous prime is 52278397. The next prime is 52278427. The reversal of 52278412 is 21487225.

It is a happy number.

52278412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52278397) and next prime (52278427).

It is a super-2 number, since 2×52278412² = 5466064722483488, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6534798 + ... + 6534805.

Almost surely, 2^52278412 is an apocalyptic number.

It is an amenable number.

52278412 is a deficient number, since it is larger than the sum of its proper divisors (39208816).

52278412 is a wasteful number, since it uses less digits than its factorization.

52278412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13069607 (or 13069605 counting only the distinct ones).

The product of its digits is 8960, while the sum is 31.

The square root of 52278412 is about 7230.3811794400. The cubic root of 52278412 is about 373.9160687483.

The spelling of 52278412 in words is "fifty-two million, two hundred seventy-eight thousand, four hundred twelve".