53101636 has 48 divisors (see below), whose sum is σ = 110702592. Its totient is φ = 21808800.

The previous prime is 53101619. The next prime is 53101649. The reversal of 53101636 is 63610135.

It is a self number, because there is not a number n which added to its sum of digits gives 53101636.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113475 + ... + 113941.

It is an arithmetic number, because the mean of its divisors is an integer number (2306304).

Almost surely, 2^53101636 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 53101636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55351296).

53101636 is an abundant number, since it is smaller than the sum of its proper divisors (57600956).

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

53101636 is a wasteful number, since it uses less digits than its factorization.

53101636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 53101636 is about 7287.0869351202. The cubic root of 53101636 is about 375.8685314479.

The spelling of 53101636 in words is "fifty-three million, one hundred one thousand, six hundred thirty-six".