54459870 has 48 divisors (see below), whose sum is σ = 135127440. Its totient is φ = 14046720.

The previous prime is 54459859. The next prime is 54459877. The reversal of 54459870 is 7895445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54459877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27886 + ... + 29774.

It is an arithmetic number, because the mean of its divisors is an integer number (2815155).

Almost surely, 2^54459870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54459870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67563720).

54459870 is an abundant number, since it is smaller than the sum of its proper divisors (80667570).

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

54459870 is a wasteful number, since it uses less digits than its factorization.

54459870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961 (or 1930 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 54459870 is about 7379.6930830489. The cubic root of 54459870 is about 379.0462462393.

The spelling of 54459870 in words is "fifty-four million, four hundred fifty-nine thousand, eight hundred seventy".