53422257 has 8 divisors (see below), whose sum is σ = 81405376. Its totient is φ = 30526992.

The previous prime is 53422231. The next prime is 53422277. The reversal of 53422257 is 75222435.

53422257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53422257 - 2¹¹ = 53420209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53422217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271938 + ... + 1271979.

It is an arithmetic number, because the mean of its divisors is an integer number (10175672).

Almost surely, 2^53422257 is an apocalyptic number.

It is an amenable number.

53422257 is a deficient number, since it is larger than the sum of its proper divisors (27983119).

53422257 is a wasteful number, since it uses less digits than its factorization.

53422257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543927.

The product of its digits is 16800, while the sum is 30.

The square root of 53422257 is about 7309.0530850446. The cubic root of 53422257 is about 376.6234963272.

It can be divided in two parts, 534 and 22257, that added together give a triangular number (22791 = T₂₁₃).

The spelling of 53422257 in words is "fifty-three million, four hundred twenty-two thousand, two hundred fifty-seven".