53320068 has 18 divisors (see below), whose sum is σ = 134781374. Its totient is φ = 17773344.

The previous prime is 53320051. The next prime is 53320079. The reversal of 53320068 is 86002335.

It can be written as a sum of positive squares in only one way, i.e., 35070084 + 18249984 = 5922^2 + 4272^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 740521 + ... + 740592.

Almost surely, 2^53320068 is an apocalyptic number.

It is an amenable number.

53320068 is an abundant number, since it is smaller than the sum of its proper divisors (81461306).

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

53320068 is a wasteful number, since it uses less digits than its factorization.

53320068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481123 (or 1481118 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 53320068 is about 7302.0591616338. The cubic root of 53320068 is about 376.3832010732.

The spelling of 53320068 in words is "fifty-three million, three hundred twenty thousand, sixty-eight".