53688976 has 80 divisors (see below), whose sum is σ = 119903040. Its totient is φ = 23063040.

The previous prime is 53688949. The next prime is 53688977. The reversal of 53688976 is 67988635.

It is a super-2 number, since 2×53688976² = 5765012287857152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53688977) 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, 341890 + ... + 342046.

It is an arithmetic number, because the mean of its divisors is an integer number (1498788).

Almost surely, 2^53688976 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 53688976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59951520).

53688976 is an abundant number, since it is smaller than the sum of its proper divisors (66214064).

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

53688976 is a wasteful number, since it uses less digits than its factorization.

53688976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 266 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 53688976 is about 7327.2761651244. The cubic root of 53688976 is about 377.2492400709.

The spelling of 53688976 in words is "fifty-three million, six hundred eighty-eight thousand, nine hundred seventy-six".