53985156 has 48 divisors (see below), whose sum is σ = 134016960. Its totient is φ = 16865280.

The previous prime is 53985143. The next prime is 53985157. The reversal of 53985156 is 65158935.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (53985157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20896 + ... + 23336.

It is an arithmetic number, because the mean of its divisors is an integer number (2792020).

Almost surely, 2^53985156 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 53985156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67008480).

53985156 is an abundant number, since it is smaller than the sum of its proper divisors (80031804).

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

53985156 is a wasteful number, since it uses less digits than its factorization.

53985156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564 (or 2562 counting only the distinct ones).

The product of its digits is 162000, while the sum is 42.

The square root of 53985156 is about 7347.4591526595. The cubic root of 53985156 is about 377.9416779647.

The spelling of 53985156 in words is "fifty-three million, nine hundred eighty-five thousand, one hundred fifty-six".