53516004 has 12 divisors (see below), whose sum is σ = 124870704. Its totient is φ = 17838664.

The previous prime is 53515999. The next prime is 53516011. The reversal of 53516004 is 40061535.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2229822 + ... + 2229845.

It is an arithmetic number, because the mean of its divisors is an integer number (10405892).

Almost surely, 2^53516004 is an apocalyptic number.

It is an amenable number.

53516004 is an abundant number, since it is smaller than the sum of its proper divisors (71354700).

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

53516004 is a wasteful number, since it uses less digits than its factorization.

53516004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459674 (or 4459672 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 53516004 is about 7315.4633482781. The cubic root of 53516004 is about 376.8436710397.

Adding to 53516004 its reverse (40061535), we get a palindrome (93577539).

The spelling of 53516004 in words is "fifty-three million, five hundred sixteen thousand, four".