54661404 has 96 divisors (see below), whose sum is σ = 158860800. Its totient is φ = 14273280.

The previous prime is 54661357. The next prime is 54661421. The reversal of 54661404 is 40416645.

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, 45694 + ... + 46874.

It is an arithmetic number, because the mean of its divisors is an integer number (1654800).

Almost surely, 2^54661404 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 54661404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79430400).

54661404 is an abundant number, since it is smaller than the sum of its proper divisors (104199396).

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

54661404 is a wasteful number, since it uses less digits than its factorization.

54661404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 54661404 is about 7393.3351067025. The cubic root of 54661404 is about 379.5132363922.

The spelling of 54661404 in words is "fifty-four million, six hundred sixty-one thousand, four hundred four".