56661234 has 16 divisors (see below), whose sum is σ = 129511488. Its totient is φ = 16188912.

The previous prime is 56661233. The next prime is 56661239. The reversal of 56661234 is 43216665.

It is a junction number, because it is equal to n+sod(n) for n = 56661195 and 56661204.

It is not an unprimeable number, because it can be changed into a prime (56661233) 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, 674497 + ... + 674580.

It is an arithmetic number, because the mean of its divisors is an integer number (8094468).

Almost surely, 2^56661234 is an apocalyptic number.

56661234 is an abundant number, since it is smaller than the sum of its proper divisors (72850254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56661234 is a wasteful number, since it uses less digits than its factorization.

56661234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349089.

The product of its digits is 25920, while the sum is 33.

The square root of 56661234 is about 7527.3656746567. The cubic root of 56661234 is about 384.0861758633.

Adding to 56661234 its reverse (43216665), we get a palindrome (99877899).

The spelling of 56661234 in words is "fifty-six million, six hundred sixty-one thousand, two hundred thirty-four".