53502404 has 24 divisors (see below), whose sum is σ = 101740800. Its totient is φ = 24524640.

The previous prime is 53502401. The next prime is 53502409. The reversal of 53502404 is 40420535.

It is a self number, because there is not a number n which added to its sum of digits gives 53502404.

It is not an unprimeable number, because it can be changed into a prime (53502401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8999 + ... + 13710.

It is an arithmetic number, because the mean of its divisors is an integer number (4239200).

Almost surely, 2^53502404 is an apocalyptic number.

It is an amenable number.

53502404 is a deficient number, since it is larger than the sum of its proper divisors (48238396).

53502404 is a wasteful number, since it uses less digits than its factorization.

53502404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22763 (or 22761 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 53502404 is about 7314.5337513747. The cubic root of 53502404 is about 376.8117459597.

Adding to 53502404 its reverse (40420535), we get a palindrome (93922939).

The spelling of 53502404 in words is "fifty-three million, five hundred two thousand, four hundred four".