56766609 has 8 divisors (see below), whose sum is σ = 84098720. Its totient is φ = 37844388.

The previous prime is 56766607. The next prime is 56766613. The reversal of 56766609 is 90666765.

It is not a de Polignac number, because 56766609 - 2¹ = 56766607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56766607) 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, 1051207 + ... + 1051260.

It is an arithmetic number, because the mean of its divisors is an integer number (10512340).

Almost surely, 2^56766609 is an apocalyptic number.

It is an amenable number.

56766609 is a deficient number, since it is larger than the sum of its proper divisors (27332111).

56766609 is a wasteful number, since it uses less digits than its factorization.

56766609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102476 (or 2102470 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 56766609 is about 7534.3618840616. The cubic root of 56766609 is about 384.3241281871.

It can be divided in two parts, 56766 and 609, that added together give a palindrome (57375).

The spelling of 56766609 in words is "fifty-six million, seven hundred sixty-six thousand, six hundred nine".