53189976 has 64 divisors (see below), whose sum is σ = 153146880. Its totient is φ = 15079680.

The previous prime is 53189963. The next prime is 53189977. The reversal of 53189976 is 67998135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53189977) 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, 21861 + ... + 24171.

It is an arithmetic number, because the mean of its divisors is an integer number (2392920).

Almost surely, 2^53189976 is an apocalyptic number.

53189976 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 53189976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76573440).

53189976 is an abundant number, since it is smaller than the sum of its proper divisors (99956904).

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

53189976 is a wasteful number, since it uses less digits than its factorization.

53189976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464 (or 2460 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The square root of 53189976 is about 7293.1458233056. The cubic root of 53189976 is about 376.0768478809.

The spelling of 53189976 in words is "fifty-three million, one hundred eighty-nine thousand, nine hundred seventy-six".