50979945 has 16 divisors (see below), whose sum is σ = 85861440. Its totient is φ = 25758144.

The previous prime is 50979931. The next prime is 50979947. The reversal of 50979945 is 54997905.

It is not a de Polignac number, because 50979945 - 2⁶ = 50979881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50979894 and 50979903.

It is not an unprimeable number, because it can be changed into a prime (50979947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89154 + ... + 89723.

It is an arithmetic number, because the mean of its divisors is an integer number (5366340).

Almost surely, 2^50979945 is an apocalyptic number.

It is an amenable number.

50979945 is a deficient number, since it is larger than the sum of its proper divisors (34881495).

50979945 is a wasteful number, since it uses less digits than its factorization.

50979945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178904.

The product of its (nonzero) digits is 510300, while the sum is 48.

The square root of 50979945 is about 7140.0241596230. The cubic root of 50979945 is about 370.7943610379.

The spelling of 50979945 in words is "fifty million, nine hundred seventy-nine thousand, nine hundred forty-five".