56906641 has 4 divisors (see below), whose sum is σ = 62079984. Its totient is φ = 51733300.

The previous prime is 56906593. The next prime is 56906659. The reversal of 56906641 is 14660965.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56906641 - 2¹³ = 56898449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56906641.

It is not an unprimeable number, because it can be changed into a prime (56906141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586655 + ... + 2586676.

It is an arithmetic number, because the mean of its divisors is an integer number (15519996).

Almost surely, 2^56906641 is an apocalyptic number.

It is an amenable number.

56906641 is a deficient number, since it is larger than the sum of its proper divisors (5173343).

56906641 is a wasteful number, since it uses less digits than its factorization.

56906641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173342.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 56906641 is about 7543.6490506916. The cubic root of 56906641 is about 384.6398859027.

The spelling of 56906641 in words is "fifty-six million, nine hundred six thousand, six hundred forty-one".