53402144 has 24 divisors (see below), whose sum is σ = 105734160. Its totient is φ = 26549056.

The previous prime is 53402143. The next prime is 53402177. The reversal of 53402144 is 44120435.

It is not an unprimeable number, because it can be changed into a prime (53402143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067 + ... + 10389.

It is an arithmetic number, because the mean of its divisors is an integer number (4405590).

Almost surely, 2^53402144 is an apocalyptic number.

It is an amenable number.

53402144 is a deficient number, since it is larger than the sum of its proper divisors (52332016).

53402144 is a wasteful number, since it uses less digits than its factorization.

53402144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512 (or 9504 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 53402144 is about 7307.6770590934. The cubic root of 53402144 is about 376.5762252729.

Adding to 53402144 its reverse (44120435), we get a palindrome (97522579).

The spelling of 53402144 in words is "fifty-three million, four hundred two thousand, one hundred forty-four".