56631447 has 8 divisors (see below), whose sum is σ = 83898480. Its totient is φ = 37754280.

The previous prime is 56631433. The next prime is 56631469. The reversal of 56631447 is 74413665.

It is a happy number.

It is not a de Polignac number, because 56631447 - 2⁶ = 56631383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56631427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1048704 + ... + 1048757.

It is an arithmetic number, because the mean of its divisors is an integer number (10487310).

Almost surely, 2^56631447 is an apocalyptic number.

56631447 is a deficient number, since it is larger than the sum of its proper divisors (27267033).

56631447 is a wasteful number, since it uses less digits than its factorization.

56631447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097470 (or 2097464 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 56631447 is about 7525.3868339109. The cubic root of 56631447 is about 384.0188589371.

The spelling of 56631447 in words is "fifty-six million, six hundred thirty-one thousand, four hundred forty-seven".