53104840 has 32 divisors (see below), whose sum is σ = 122403960. Its totient is φ = 20723200.

The previous prime is 53104837. The next prime is 53104847. The reversal of 53104840 is 4840135.

It can be written as a sum of positive squares in 4 ways, for example, as 31741956 + 21362884 = 5634^2 + 4622^2 .

It is not an unprimeable number, because it can be changed into a prime (53104847) 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, 14551 + ... + 17830.

Almost surely, 2^53104840 is an apocalyptic number.

It is an amenable number.

53104840 is an abundant number, since it is smaller than the sum of its proper divisors (69299120).

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

53104840 is a wasteful number, since it uses less digits than its factorization.

53104840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32433 (or 32429 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 53104840 is about 7287.3067727385. The cubic root of 53104840 is about 375.8760909046.

Adding to 53104840 its reverse (4840135), we get a palindrome (57944975).

The spelling of 53104840 in words is "fifty-three million, one hundred four thousand, eight hundred forty".