53397680 has 160 divisors (see below), whose sum is σ = 154275840. Its totient is φ = 16773120.

The previous prime is 53397667. The next prime is 53397713. The reversal of 53397680 is 8679335.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 675881 + ... + 675959.

It is an arithmetic number, because the mean of its divisors is an integer number (964224).

Almost surely, 2^53397680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53397680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77137920).

53397680 is an abundant number, since it is smaller than the sum of its proper divisors (100878160).

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

53397680 is a wasteful number, since it uses less digits than its factorization.

53397680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 53397680 is about 7307.3716204939. The cubic root of 53397680 is about 376.5657320418.

The spelling of 53397680 in words is "fifty-three million, three hundred ninety-seven thousand, six hundred eighty".