54640680 has 32 divisors (see below), whose sum is σ = 163922400. Its totient is φ = 14570816.

The previous prime is 54640657. The next prime is 54640681. The reversal of 54640680 is 8604645.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (54640681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227550 + ... + 227789.

It is an arithmetic number, because the mean of its divisors is an integer number (5122575).

Almost surely, 2^54640680 is an apocalyptic number.

It is an amenable number.

54640680 is an abundant number, since it is smaller than the sum of its proper divisors (109281720).

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

54640680 is a wasteful number, since it uses less digits than its factorization.

54640680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455353 (or 455349 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 54640680 is about 7391.9334412588. The cubic root of 54640680 is about 379.4652681982.

The spelling of 54640680 in words is "fifty-four million, six hundred forty thousand, six hundred eighty".