54651660 has 144 divisors (see below), whose sum is σ = 184433760. Its totient is φ = 12042240.

The previous prime is 54651637. The next prime is 54651661. The reversal of 54651660 is 6615645.

It is not an unprimeable number, because it can be changed into a prime (54651661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84940 + ... + 85580.

It is an arithmetic number, because the mean of its divisors is an integer number (1280790).

Almost surely, 2^54651660 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 54651660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92216880).

54651660 is an abundant number, since it is smaller than the sum of its proper divisors (129782100).

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

54651660 is a wasteful number, since it uses less digits than its factorization.

54651660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 54651660 is about 7392.6761054438. The cubic root of 54651660 is about 379.4906842410.

The spelling of 54651660 in words is "fifty-four million, six hundred fifty-one thousand, six hundred sixty".