54941840 has 20 divisors (see below), whose sum is σ = 127739964. Its totient is φ = 21976704.

The previous prime is 54941839. The next prime is 54941849. The reversal of 54941840 is 4814945.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19324816 + 35617024 = 4396^2 + 5968^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 54941840.

It is not an unprimeable number, because it can be changed into a prime (54941849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343307 + ... + 343466.

Almost surely, 2^54941840 is an apocalyptic number.

It is an amenable number.

54941840 is an abundant number, since it is smaller than the sum of its proper divisors (72798124).

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

54941840 is a wasteful number, since it uses less digits than its factorization.

54941840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686786 (or 686780 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 54941840 is about 7412.2763035386. The cubic root of 54941840 is about 380.1611504862.

The spelling of 54941840 in words is "fifty-four million, nine hundred forty-one thousand, eight hundred forty".