55430251 has 8 divisors (see below), whose sum is σ = 58756320. Its totient is φ = 52111488.

The previous prime is 55430233. The next prime is 55430257. The reversal of 55430251 is 15203455.

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

It is a cyclic number.

It is not a de Polignac number, because 55430251 - 2¹¹ = 55428203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55430257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26305 + ... + 28333.

It is an arithmetic number, because the mean of its divisors is an integer number (7344540).

Almost surely, 2^55430251 is an apocalyptic number.

55430251 is a deficient number, since it is larger than the sum of its proper divisors (3326069).

55430251 is a wasteful number, since it uses less digits than its factorization.

55430251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3653.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55430251 is about 7445.1494948053. The cubic root of 55430251 is about 381.2843224139.

The spelling of 55430251 in words is "fifty-five million, four hundred thirty thousand, two hundred fifty-one".