54621630 has 96 divisors (see below), whose sum is σ = 163410624. Its totient is φ = 12400128.

The previous prime is 54621613. The next prime is 54621631. The reversal of 54621630 is 3612645.

54621630 is a `hidden beast` number, since 5 + 4 + 6 + 21 + 630 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 54621594 and 54621603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54621631) 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, 174354 + ... + 174666.

It is an arithmetic number, because the mean of its divisors is an integer number (1702194).

Almost surely, 2^54621630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54621630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81705312).

54621630 is an abundant number, since it is smaller than the sum of its proper divisors (108788994).

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

54621630 is a wasteful number, since it uses less digits than its factorization.

54621630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 54621630 is about 7390.6447621300. The cubic root of 54621630 is about 379.4211639789.

The spelling of 54621630 in words is "fifty-four million, six hundred twenty-one thousand, six hundred thirty".