53402064 has 20 divisors (see below), whose sum is σ = 137955456. Its totient is φ = 17800672.

The previous prime is 53402051. The next prime is 53402093. The reversal of 53402064 is 46020435.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 556224 + ... + 556319.

Almost surely, 2^53402064 is an apocalyptic number.

It is an amenable number.

53402064 is an abundant number, since it is smaller than the sum of its proper divisors (84553392).

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

53402064 is a wasteful number, since it uses less digits than its factorization.

53402064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112554 (or 1112548 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 53402064 is about 7307.6715853957. The cubic root of 53402064 is about 376.5760372273.

Adding to 53402064 its reverse (46020435), we get a palindrome (99422499).

The spelling of 53402064 in words is "fifty-three million, four hundred two thousand, sixty-four".