53712380 has 24 divisors (see below), whose sum is σ = 113613360. Its totient is φ = 21330384.

The previous prime is 53712349. The next prime is 53712389. The reversal of 53712380 is 8321735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53712389) 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, 386351 + ... + 386489.

It is an arithmetic number, because the mean of its divisors is an integer number (4733890).

Almost surely, 2^53712380 is an apocalyptic number.

It is an amenable number.

53712380 is an abundant number, since it is smaller than the sum of its proper divisors (59900980).

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

53712380 is an frugal number, since it uses more digits than its factorization.

53712380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 53712380 is about 7328.8730375140. The cubic root of 53712380 is about 377.3040487067.

The spelling of 53712380 in words is "fifty-three million, seven hundred twelve thousand, three hundred eighty".