53772416 has 16 divisors (see below), whose sum is σ = 107124990. Its totient is φ = 26886144.

The previous prime is 53772401. The next prime is 53772431. The reversal of 53772416 is 61427735.

It is an interprime number because it is at equal distance from previous prime (53772401) and next prime (53772431).

It can be written as a sum of positive squares in only one way, i.e., 34762816 + 19009600 = 5896^2 + 4360^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209921 + ... + 210176.

Almost surely, 2^53772416 is an apocalyptic number.

It is an amenable number.

53772416 is a deficient number, since it is larger than the sum of its proper divisors (53352574).

53772416 is an equidigital number, since it uses as much as digits as its factorization.

53772416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420111 (or 420099 counting only the distinct ones).

The product of its digits is 35280, while the sum is 35.

The square root of 53772416 is about 7332.9677484631. The cubic root of 53772416 is about 377.4445711930. Note that the first 3 decimals are identical.

The spelling of 53772416 in words is "fifty-three million, seven hundred seventy-two thousand, four hundred sixteen".