50972279 has 2 divisors, whose sum is σ = 50972280. Its totient is φ = 50972278.

The previous prime is 50972267. The next prime is 50972281. The reversal of 50972279 is 97227905.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50972279 is a prime.

Together with 50972281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50972879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25486139 + 25486140.

It is an arithmetic number, because the mean of its divisors is an integer number (25486140).

Almost surely, 2^50972279 is an apocalyptic number.

50972279 is a deficient number, since it is larger than the sum of its proper divisors (1).

50972279 is an equidigital number, since it uses as much as digits as its factorization.

50972279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 50972279 is about 7139.4873065228. The cubic root of 50972279 is about 370.7757743037.

The spelling of 50972279 in words is "fifty million, nine hundred seventy-two thousand, two hundred seventy-nine".