52278668 has 12 divisors (see below), whose sum is σ = 98525280. Its totient is φ = 24128592.

The previous prime is 52278643. The next prime is 52278691. The reversal of 52278668 is 86687225.

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, 502628 + ... + 502731.

It is an arithmetic number, because the mean of its divisors is an integer number (8210440).

Almost surely, 2^52278668 is an apocalyptic number.

It is an amenable number.

52278668 is a deficient number, since it is larger than the sum of its proper divisors (46246612).

52278668 is a wasteful number, since it uses less digits than its factorization.

52278668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005376 (or 1005374 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The square root of 52278668 is about 7230.3988824960. The cubic root of 52278668 is about 373.9166790854.

The spelling of 52278668 in words is "fifty-two million, two hundred seventy-eight thousand, six hundred sixty-eight".