53391844 has 12 divisors (see below), whose sum is σ = 101929968. Its totient is φ = 24269000.

The previous prime is 53391817. The next prime is 53391869. The reversal of 53391844 is 44819335.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606682 + ... + 606769.

It is an arithmetic number, because the mean of its divisors is an integer number (8494164).

Almost surely, 2^53391844 is an apocalyptic number.

It is an amenable number.

53391844 is a deficient number, since it is larger than the sum of its proper divisors (48538124).

53391844 is a wasteful number, since it uses less digits than its factorization.

53391844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213466 (or 1213464 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 53391844 is about 7306.9722867957. The cubic root of 53391844 is about 376.5520128585.

The spelling of 53391844 in words is "fifty-three million, three hundred ninety-one thousand, eight hundred forty-four".