53939760 has 160 divisors (see below), whose sum is σ = 193654272. Its totient is φ = 12165120.

The previous prime is 53939741. The next prime is 53939771. The reversal of 53939760 is 6793935.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162795 + ... + 163125.

Almost surely, 2^53939760 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 53939760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96827136).

53939760 is an abundant number, since it is smaller than the sum of its proper divisors (139714512).

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

53939760 is a wasteful number, since it uses less digits than its factorization.

53939760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 42.

The square root of 53939760 is about 7344.3692717619. The cubic root of 53939760 is about 377.8357114791.

The spelling of 53939760 in words is "fifty-three million, nine hundred thirty-nine thousand, seven hundred sixty".