50977665 has 48 divisors (see below), whose sum is σ = 94036800. Its totient is φ = 25474176.

The previous prime is 50977651. The next prime is 50977723. The reversal of 50977665 is 56677905.

It is a happy number.

It is not a de Polignac number, because 50977665 - 2⁴ = 50977649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50977665.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92922 + ... + 93468.

It is an arithmetic number, because the mean of its divisors is an integer number (1959100).

Almost surely, 2^50977665 is an apocalyptic number.

It is an amenable number.

50977665 is a deficient number, since it is larger than the sum of its proper divisors (43059135).

50977665 is a wasteful number, since it uses less digits than its factorization.

50977665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 45.

The square root of 50977665 is about 7139.8644945125. The cubic root of 50977665 is about 370.7888332187.

The spelling of 50977665 in words is "fifty million, nine hundred seventy-seven thousand, six hundred sixty-five".