54621730 has 8 divisors (see below), whose sum is σ = 98319132. Its totient is φ = 21848688.

The previous prime is 54621701. The next prime is 54621733. The reversal of 54621730 is 3712645.

It can be written as a sum of positive squares in 2 ways, for example, as 54420129 + 201601 = 7377^2 + 449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (54621733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2731077 + ... + 2731096.

Almost surely, 2^54621730 is an apocalyptic number.

54621730 is a deficient number, since it is larger than the sum of its proper divisors (43697402).

54621730 is a wasteful number, since it uses less digits than its factorization.

54621730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462180.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 54621730 is about 7390.6515274365. The cubic root of 54621730 is about 379.4213955238.

The spelling of 54621730 in words is "fifty-four million, six hundred twenty-one thousand, seven hundred thirty".