247392056 has 16 divisors (see below), whose sum is σ = 464027640. Its totient is φ = 123651360.

The previous prime is 247392049. The next prime is 247392097. The reversal of 247392056 is 650293742.

It is a super-2 number, since 2×247392056² = 122405658743814272, 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 3 ways as a sum of consecutive naturals, for example, 37571 + ... + 43661.

Almost surely, 2^247392056 is an apocalyptic number.

It is an amenable number.

247392056 is a deficient number, since it is larger than the sum of its proper divisors (216635584).

247392056 is a wasteful number, since it uses less digits than its factorization.

247392056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11174 (or 11170 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 247392056 is about 15728.7016628837. The cubic root of 247392056 is about 627.7623277397.

The spelling of 247392056 in words is "two hundred forty-seven million, three hundred ninety-two thousand, fifty-six".