50979818 has 4 divisors (see below), whose sum is σ = 76469730. Its totient is φ = 25489908.

The previous prime is 50979809. The next prime is 50979833. The reversal of 50979818 is 81897905.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81897905 = 5 ⋅16379581.

It can be written as a sum of positive squares in only one way, i.e., 48678529 + 2301289 = 6977^2 + 1517^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12744953 + ... + 12744956.

Almost surely, 2^50979818 is an apocalyptic number.

50979818 is a deficient number, since it is larger than the sum of its proper divisors (25489912).

50979818 is a wasteful number, since it uses less digits than its factorization.

50979818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25489911.

The product of its (nonzero) digits is 181440, while the sum is 47.

The square root of 50979818 is about 7140.0152660901. The cubic root of 50979818 is about 370.7940531330.

The spelling of 50979818 in words is "fifty million, nine hundred seventy-nine thousand, eight hundred eighteen".