53007864 has 96 divisors (see below), whose sum is σ = 164085120. Its totient is φ = 13972608.

The previous prime is 53007839. The next prime is 53007917. The reversal of 53007864 is 46870035.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27459 + ... + 29325.

It is an arithmetic number, because the mean of its divisors is an integer number (1709220).

Almost surely, 2^53007864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53007864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82042560).

53007864 is an abundant number, since it is smaller than the sum of its proper divisors (111077256).

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

53007864 is a wasteful number, since it uses less digits than its factorization.

53007864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909 (or 1892 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 53007864 is about 7280.6499709847. The cubic root of 53007864 is about 375.6471527619.

Adding to 53007864 its reverse (46870035), we get a palindrome (99877899).

The spelling of 53007864 in words is "fifty-three million, seven thousand, eight hundred sixty-four".