54311660 has 24 divisors (see below), whose sum is σ = 122828496. Its totient is φ = 20053440.

The previous prime is 54311629. The next prime is 54311669. The reversal of 54311660 is 6611345.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (54311669) 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, 104186 + ... + 104705.

It is an arithmetic number, because the mean of its divisors is an integer number (5117854).

Almost surely, 2^54311660 is an apocalyptic number.

It is an amenable number.

54311660 is an abundant number, since it is smaller than the sum of its proper divisors (68516836).

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

54311660 is a wasteful number, since it uses less digits than its factorization.

54311660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208913 (or 208911 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 54311660 is about 7369.6444961748. The cubic root of 54311660 is about 378.7020816053.

The spelling of 54311660 in words is "fifty-four million, three hundred eleven thousand, six hundred sixty".