54621040 has 20 divisors (see below), whose sum is σ = 126994104. Its totient is φ = 21848384.

The previous prime is 54621031. The next prime is 54621041. The reversal of 54621040 is 4012645.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54621041) 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, 341302 + ... + 341461.

Almost surely, 2^54621040 is an apocalyptic number.

It is an amenable number.

54621040 is an abundant number, since it is smaller than the sum of its proper divisors (72373064).

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

54621040 is a wasteful number, since it uses less digits than its factorization.

54621040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682776 (or 682770 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 54621040 is about 7390.6048466956. The cubic root of 54621040 is about 379.4197978577.

Adding to 54621040 its reverse (4012645), we get a palindrome (58633685).

The spelling of 54621040 in words is "fifty-four million, six hundred twenty-one thousand, forty".