53323564 has 18 divisors (see below), whose sum is σ = 108551940. Its totient is φ = 22852872.

The previous prime is 53323559. The next prime is 53323573. The reversal of 53323564 is 46532335.

It is a happy number.

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, 135834 + ... + 136225.

Almost surely, 2^53323564 is an apocalyptic number.

It is an amenable number.

53323564 is an abundant number, since it is smaller than the sum of its proper divisors (55228376).

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

53323564 is a wasteful number, since it uses less digits than its factorization.

53323564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272077 (or 272068 counting only the distinct ones).

The product of its digits is 32400, while the sum is 31.

The square root of 53323564 is about 7302.2985422400. The cubic root of 53323564 is about 376.3914269123.

Adding to 53323564 its reverse (46532335), we get a palindrome (99855899).

The spelling of 53323564 in words is "fifty-three million, three hundred twenty-three thousand, five hundred sixty-four".