51522079 has 6 divisors (see below), whose sum is σ = 59933904. Its totient is φ = 44161740.

The previous prime is 51522077. The next prime is 51522083. The reversal of 51522079 is 97022515.

It is not a de Polignac number, because 51522079 - 2¹ = 51522077 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 51522079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51522071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 525687 + ... + 525784.

It is an arithmetic number, because the mean of its divisors is an integer number (9988984).

Almost surely, 2^51522079 is an apocalyptic number.

51522079 is a deficient number, since it is larger than the sum of its proper divisors (8411825).

51522079 is a wasteful number, since it uses less digits than its factorization.

51522079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051485 (or 1051478 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 51522079 is about 7177.8881991850. Note that the first 3 decimals coincide. The cubic root of 51522079 is about 372.1041038080.

The spelling of 51522079 in words is "fifty-one million, five hundred twenty-two thousand, seventy-nine".