54551630 has 64 divisors (see below), whose sum is σ = 120987648. Its totient is φ = 17297280.

The previous prime is 54551621. The next prime is 54551647. The reversal of 54551630 is 3615545.

It is a junction number, because it is equal to n+sod(n) for n = 54551593 and 54551602.

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, 49364 + ... + 50456.

It is an arithmetic number, because the mean of its divisors is an integer number (1890432).

Almost surely, 2^54551630 is an apocalyptic number.

54551630 is an abundant number, since it is smaller than the sum of its proper divisors (66436018).

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

54551630 is a wasteful number, since it uses less digits than its factorization.

54551630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 54551630 is about 7385.9075271763. The cubic root of 54551630 is about 379.2590131040.

The spelling of 54551630 in words is "fifty-four million, five hundred fifty-one thousand, six hundred thirty".