53442280 has 16 divisors (see below), whose sum is σ = 120245220. Its totient is φ = 21376896.

The previous prime is 53442251. The next prime is 53442343. The reversal of 53442280 is 8224435.

It can be written as a sum of positive squares in 2 ways, for example, as 53260804 + 181476 = 7298^2 + 426^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667989 + ... + 668068.

Almost surely, 2^53442280 is an apocalyptic number.

It is an amenable number.

53442280 is an abundant number, since it is smaller than the sum of its proper divisors (66802940).

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

53442280 is a wasteful number, since it uses less digits than its factorization.

53442280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336068 (or 1336064 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 53442280 is about 7310.4226963972. The cubic root of 53442280 is about 376.6705440730.

The spelling of 53442280 in words is "fifty-three million, four hundred forty-two thousand, two hundred eighty".