53879680 has 64 divisors (see below), whose sum is σ = 133293600. Its totient is φ = 20801536.

The previous prime is 53879677. The next prime is 53879689. The reversal of 53879680 is 8697835.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 53879680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53879689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17109 + ... + 20011.

Almost surely, 2^53879680 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 53879680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66646800).

53879680 is an abundant number, since it is smaller than the sum of its proper divisors (79413920).

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

53879680 is a wasteful number, since it uses less digits than its factorization.

53879680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951 (or 2939 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 53879680 is about 7340.2779238936. The cubic root of 53879680 is about 377.6953771326.

The spelling of 53879680 in words is "fifty-three million, eight hundred seventy-nine thousand, six hundred eighty".