53448420 has 48 divisors (see below), whose sum is σ = 153312768. Its totient is φ = 13904640.

The previous prime is 53448407. The next prime is 53448427. The reversal of 53448420 is 2484435.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (53448427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8404 + ... + 13323.

It is an arithmetic number, because the mean of its divisors is an integer number (3194016).

Almost surely, 2^53448420 is an apocalyptic number.

It is an amenable number.

53448420 is an abundant number, since it is smaller than the sum of its proper divisors (99864348).

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

53448420 is a wasteful number, since it uses less digits than its factorization.

53448420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21780 (or 21778 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 53448420 is about 7310.8426326929. The cubic root of 53448420 is about 376.6849687855.

The spelling of 53448420 in words is "fifty-three million, four hundred forty-eight thousand, four hundred twenty".