52638936 has 96 divisors (see below), whose sum is σ = 162149040. Its totient is φ = 14149632.

The previous prime is 52638917. The next prime is 52638941. The reversal of 52638936 is 63983625.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 18676 + ... + 21308.

Almost surely, 2^52638936 is an apocalyptic number.

52638936 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52638936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81074520).

52638936 is an abundant number, since it is smaller than the sum of its proper divisors (109510104).

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

52638936 is a wasteful number, since it uses less digits than its factorization.

52638936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2662 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 52638936 is about 7255.2695332427. The cubic root of 52638936 is about 374.7736376099.

The spelling of 52638936 in words is "fifty-two million, six hundred thirty-eight thousand, nine hundred thirty-six".