51722495 has 16 divisors (see below), whose sum is σ = 67969152. Its totient is φ = 37472160.

The previous prime is 51722467. The next prime is 51722497. The reversal of 51722495 is 59422715.

It is not a de Polignac number, because 51722495 - 2²⁰ = 50673919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51722497) 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, 13904 + ... + 17226.

It is an arithmetic number, because the mean of its divisors is an integer number (4248072).

Almost surely, 2^51722495 is an apocalyptic number.

51722495 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51722495 is a deficient number, since it is larger than the sum of its proper divisors (16246657).

51722495 is a wasteful number, since it uses less digits than its factorization.

51722495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3622.

The product of its digits is 25200, while the sum is 35.

The square root of 51722495 is about 7191.8353012287. The cubic root of 51722495 is about 372.5859627740.

It can be divided in two parts, 5172 and 2495, that added together give a palindrome (7667).

The spelling of 51722495 in words is "fifty-one million, seven hundred twenty-two thousand, four hundred ninety-five".