56561633 has 8 divisors (see below), whose sum is σ = 57870720. Its totient is φ = 55257040.

The previous prime is 56561627. The next prime is 56561663. The reversal of 56561633 is 33616565.

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

It is a cyclic number.

It is not a de Polignac number, because 56561633 - 2¹² = 56557537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56561593 and 56561602.

It is not an unprimeable number, because it can be changed into a prime (56561663) 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, 47303 + ... + 48483.

It is an arithmetic number, because the mean of its divisors is an integer number (7233840).

Almost surely, 2^56561633 is an apocalyptic number.

It is an amenable number.

56561633 is a deficient number, since it is larger than the sum of its proper divisors (1309087).

56561633 is a wasteful number, since it uses less digits than its factorization.

56561633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247.

The product of its digits is 48600, while the sum is 35.

The square root of 56561633 is about 7520.7468379144. The cubic root of 56561633 is about 383.8609907180.

The spelling of 56561633 in words is "fifty-six million, five hundred sixty-one thousand, six hundred thirty-three".