53240380 has 24 divisors (see below), whose sum is σ = 111942432. Its totient is φ = 21269952.

The previous prime is 53240347. The next prime is 53240387. The reversal of 53240380 is 8304235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53240387) 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, 28969 + ... + 30751.

It is an arithmetic number, because the mean of its divisors is an integer number (4664268).

Almost surely, 2^53240380 is an apocalyptic number.

It is an amenable number.

53240380 is an abundant number, since it is smaller than the sum of its proper divisors (58702052).

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

53240380 is a wasteful number, since it uses less digits than its factorization.

53240380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285 (or 3283 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 53240380 is about 7296.6005783515. The cubic root of 53240380 is about 376.1956032955.

The spelling of 53240380 in words is "fifty-three million, two hundred forty thousand, three hundred eighty".