53536404 has 24 divisors (see below), whose sum is σ = 126501760. Its totient is φ = 17619264.

The previous prime is 53536381. The next prime is 53536409. The reversal of 53536404 is 40463535.

It is a super-2 number, since 2×53536404² = 5732293106502432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53536409) 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, 27289 + ... + 29184.

Almost surely, 2^53536404 is an apocalyptic number.

It is an amenable number.

53536404 is an abundant number, since it is smaller than the sum of its proper divisors (72965356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53536404 is a wasteful number, since it uses less digits than its factorization.

53536404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56559 (or 56557 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 53536404 is about 7316.8575221881. The cubic root of 53536404 is about 376.8915485199.

Adding to 53536404 its reverse (40463535), we get a palindrome (93999939).

The spelling of 53536404 in words is "fifty-three million, five hundred thirty-six thousand, four hundred four".