56947642 has 8 divisors (see below), whose sum is σ = 85461300. Its totient is φ = 28460544.

The previous prime is 56947613. The next prime is 56947663. The reversal of 56947642 is 24674965.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43705321 + 13242321 = 6611^2 + 3639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 84 + ... + 10672.

Almost surely, 2^56947642 is an apocalyptic number.

56947642 is a deficient number, since it is larger than the sum of its proper divisors (28513658).

56947642 is a wasteful number, since it uses less digits than its factorization.

56947642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13280.

The product of its digits is 362880, while the sum is 43.

The square root of 56947642 is about 7546.3661453709. The cubic root of 56947642 is about 384.7322408760.

The spelling of 56947642 in words is "fifty-six million, nine hundred forty-seven thousand, six hundred forty-two".