53661424 has 20 divisors (see below), whose sum is σ = 105395536. Its totient is φ = 26462592.

The previous prime is 53661379. The next prime is 53661427. The reversal of 53661424 is 42416635.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53661427) 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, 21804 + ... + 24139.

Almost surely, 2^53661424 is an apocalyptic number.

It is an amenable number.

53661424 is a deficient number, since it is larger than the sum of its proper divisors (51734112).

53661424 is a wasteful number, since it uses less digits than its factorization.

53661424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46024 (or 46018 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 53661424 is about 7325.3958254827. The cubic root of 53661424 is about 377.1846970285.

The spelling of 53661424 in words is "fifty-three million, six hundred sixty-one thousand, four hundred twenty-four".