53552840 has 32 divisors (see below), whose sum is σ = 131448960. Its totient is φ = 19473600.

The previous prime is 53552831. The next prime is 53552861. The reversal of 53552840 is 4825535.

It is a junction number, because it is equal to n+sod(n) for n = 53552797 and 53552806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60416 + ... + 61295.

It is an arithmetic number, because the mean of its divisors is an integer number (4107780).

Almost surely, 2^53552840 is an apocalyptic number.

It is an amenable number.

53552840 is an abundant number, since it is smaller than the sum of its proper divisors (77896120).

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

53552840 is a wasteful number, since it uses less digits than its factorization.

53552840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121733 (or 121729 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 53552840 is about 7317.9805957655. The cubic root of 53552840 is about 376.9301139023.

The spelling of 53552840 in words is "fifty-three million, five hundred fifty-two thousand, eight hundred forty".