54651630 has 32 divisors (see below), whose sum is σ = 143088768. Its totient is φ = 13248800.

The previous prime is 54651601. The next prime is 54651637. The reversal of 54651630 is 3615645.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54651637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82476 + ... + 83135.

It is an arithmetic number, because the mean of its divisors is an integer number (4471524).

Almost surely, 2^54651630 is an apocalyptic number.

54651630 is an abundant number, since it is smaller than the sum of its proper divisors (88437138).

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

54651630 is a wasteful number, since it uses less digits than its factorization.

54651630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165632.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 54651630 is about 7392.6740764083. The cubic root of 54651630 is about 379.4906148029.

The spelling of 54651630 in words is "fifty-four million, six hundred fifty-one thousand, six hundred thirty".