51722593 has 16 divisors (see below), whose sum is σ = 57889216. Its totient is φ = 45904320.

The previous prime is 51722581. The next prime is 51722597. The reversal of 51722593 is 39522715.

It is a cyclic number.

It is not a de Polignac number, because 51722593 - 2¹³ = 51714401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51722597) 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, 36763 + ... + 38143.

It is an arithmetic number, because the mean of its divisors is an integer number (3618076).

Almost surely, 2^51722593 is an apocalyptic number.

It is an amenable number.

51722593 is a deficient number, since it is larger than the sum of its proper divisors (6166623).

51722593 is a wasteful number, since it uses less digits than its factorization.

51722593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504.

The product of its digits is 18900, while the sum is 34.

The square root of 51722593 is about 7191.8421145072. The cubic root of 51722593 is about 372.5861980901.

The spelling of 51722593 in words is "fifty-one million, seven hundred twenty-two thousand, five hundred ninety-three".