55430307 has 6 divisors (see below), whose sum is σ = 80066012. Its totient is φ = 36953532.

The previous prime is 55430279. The next prime is 55430321. The reversal of 55430307 is 70303455.

It is a happy number.

It is not a de Polignac number, because 55430307 - 2⁸ = 55430051 is a prime.

It is a super-3 number, since 3×55430307³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55430327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3079453 + ... + 3079470.

Almost surely, 2^55430307 is an apocalyptic number.

55430307 is a deficient number, since it is larger than the sum of its proper divisors (24635705).

55430307 is a wasteful number, since it uses less digits than its factorization.

55430307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6158929 (or 6158926 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 55430307 is about 7445.1532556422. The cubic root of 55430307 is about 381.2844508150.

The spelling of 55430307 in words is "fifty-five million, four hundred thirty thousand, three hundred seven".