53722457 has 8 divisors (see below), whose sum is σ = 57252096. Its totient is φ = 50292352.

The previous prime is 53722441. The next prime is 53722469. The reversal of 53722457 is 75422735.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53722457 - 2⁴ = 53722441 is a prime.

It is a super-2 number, since 2×53722457² = 5772204772233698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53722477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23768 + ... + 25929.

It is an arithmetic number, because the mean of its divisors is an integer number (7156512).

Almost surely, 2^53722457 is an apocalyptic number.

It is an amenable number.

53722457 is a deficient number, since it is larger than the sum of its proper divisors (3529639).

53722457 is a wasteful number, since it uses less digits than its factorization.

53722457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49767.

The product of its digits is 58800, while the sum is 35.

The square root of 53722457 is about 7329.5604915984. The cubic root of 53722457 is about 377.3276426165.

The spelling of 53722457 in words is "fifty-three million, seven hundred twenty-two thousand, four hundred fifty-seven".