53424720 has 60 divisors (see below), whose sum is σ = 179420436. Its totient is φ = 14246400.

The previous prime is 53424703. The next prime is 53424733. The reversal of 53424720 is 2742435.

It can be written as a sum of positive squares in 2 ways, for example, as 12362256 + 41062464 = 3516^2 + 6408^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36381 + ... + 37820.

Almost surely, 2^53424720 is an apocalyptic number.

It is an amenable number.

53424720 is an abundant number, since it is smaller than the sum of its proper divisors (125995716).

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

53424720 is a wasteful number, since it uses less digits than its factorization.

53424720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74220 (or 74211 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 53424720 is about 7309.2215727805. The cubic root of 53424720 is about 376.6292842357.

The spelling of 53424720 in words is "fifty-three million, four hundred twenty-four thousand, seven hundred twenty".