53340664 has 16 divisors (see below), whose sum is σ = 107707320. Its totient is φ = 24618720.

The previous prime is 53340653. The next prime is 53340671. The reversal of 53340664 is 46604335.

It is a congruent number.

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, 256342 + ... + 256549.

Almost surely, 2^53340664 is an apocalyptic number.

It is an amenable number.

53340664 is an abundant number, since it is smaller than the sum of its proper divisors (54366656).

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

53340664 is a wasteful number, since it uses less digits than its factorization.

53340664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512910 (or 512906 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 53340664 is about 7303.4693125938. The cubic root of 53340664 is about 376.4316568159.

Adding to 53340664 its reverse (46604335), we get a palindrome (99944999).

The spelling of 53340664 in words is "fifty-three million, three hundred forty thousand, six hundred sixty-four".