53601516 has 18 divisors (see below), whose sum is σ = 135492812. Its totient is φ = 17867160.

The previous prime is 53601487. The next prime is 53601517. The reversal of 53601516 is 61510635.

It is a happy number.

53601516 is a `hidden beast` number, since 5 + 3 + 601 + 51 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 53601516.

It is not an unprimeable number, because it can be changed into a prime (53601517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 744430 + ... + 744501.

Almost surely, 2^53601516 is an apocalyptic number.

It is an amenable number.

53601516 is an abundant number, since it is smaller than the sum of its proper divisors (81891296).

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

53601516 is a wasteful number, since it uses less digits than its factorization.

53601516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488941 (or 1488936 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 53601516 is about 7321.3056212673. The cubic root of 53601516 is about 377.0442808581.

The spelling of 53601516 in words is "fifty-three million, six hundred one thousand, five hundred sixteen".