53143504 has 10 divisors (see below), whose sum is σ = 102965570. Its totient is φ = 26571744.

The previous prime is 53143499. The next prime is 53143543. The reversal of 53143504 is 40534135.

It can be written as a sum of positive squares in only one way, i.e., 52417600 + 725904 = 7240^2 + 852^2 .

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, 1660719 + ... + 1660750.

It is an arithmetic number, because the mean of its divisors is an integer number (10296557).

Almost surely, 2^53143504 is an apocalyptic number.

It is an amenable number.

53143504 is a deficient number, since it is larger than the sum of its proper divisors (49822066).

53143504 is a wasteful number, since it uses less digits than its factorization.

53143504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321477 (or 3321471 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 53143504 is about 7289.9591219704. The cubic root of 53143504 is about 375.9672900472.

Adding to 53143504 its reverse (40534135), we get a palindrome (93677639).

The spelling of 53143504 in words is "fifty-three million, one hundred forty-three thousand, five hundred four".