53988404 has 6 divisors (see below), whose sum is σ = 94479714. Its totient is φ = 26994200.

The previous prime is 53988323. The next prime is 53988421. The reversal of 53988404 is 40488935.

It can be written as a sum of positive squares in only one way, i.e., 38464804 + 15523600 = 6202^2 + 3940^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6748547 + ... + 6748554.

It is an arithmetic number, because the mean of its divisors is an integer number (15746619).

Almost surely, 2^53988404 is an apocalyptic number.

It is an amenable number.

53988404 is a deficient number, since it is larger than the sum of its proper divisors (40491310).

53988404 is a wasteful number, since it uses less digits than its factorization.

53988404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13497105 (or 13497103 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 53988404 is about 7347.6801781242. The cubic root of 53988404 is about 377.9492573936.

The spelling of 53988404 in words is "fifty-three million, nine hundred eighty-eight thousand, four hundred four".