53091944 has 8 divisors (see below), whose sum is σ = 99547410. Its totient is φ = 26545968.

The previous prime is 53091919. The next prime is 53091949. The reversal of 53091944 is 44919035.

It can be written as a sum of positive squares in only one way, i.e., 48469444 + 4622500 = 6962^2 + 2150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (53091949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3318239 + ... + 3318254.

Almost surely, 2^53091944 is an apocalyptic number.

It is an amenable number.

53091944 is a deficient number, since it is larger than the sum of its proper divisors (46455466).

53091944 is a wasteful number, since it uses less digits than its factorization.

53091944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6636499 (or 6636495 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 53091944 is about 7286.4218928086. The cubic root of 53091944 is about 375.8456624760.

The spelling of 53091944 in words is "fifty-three million, ninety-one thousand, nine hundred forty-four".