55430724 has 12 divisors (see below), whose sum is σ = 129338384. Its totient is φ = 18476904.

The previous prime is 55430717. The next prime is 55430731. The reversal of 55430724 is 42703455.

55430724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55430717) and next prime (55430731).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 55430691 and 55430700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309602 + ... + 2309625.

Almost surely, 2^55430724 is an apocalyptic number.

It is an amenable number.

55430724 is an abundant number, since it is smaller than the sum of its proper divisors (73907660).

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

55430724 is a wasteful number, since it uses less digits than its factorization.

55430724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619234 (or 4619232 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 55430724 is about 7445.1812603858. The cubic root of 55430724 is about 381.2854069419.

The spelling of 55430724 in words is "fifty-five million, four hundred thirty thousand, seven hundred twenty-four".