55250307 has 24 divisors (see below), whose sum is σ = 94355040. Its totient is φ = 30481920.

The previous prime is 55250291. The next prime is 55250353. The reversal of 55250307 is 70305255.

It is not a de Polignac number, because 55250307 - 2⁴ = 55250291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55251307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13294 + ... + 16947.

It is an arithmetic number, because the mean of its divisors is an integer number (3931460).

Almost surely, 2^55250307 is an apocalyptic number.

55250307 is a deficient number, since it is larger than the sum of its proper divisors (39104733).

55250307 is a wasteful number, since it uses less digits than its factorization.

55250307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30283 (or 30280 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 55250307 is about 7433.0550246853. The cubic root of 55250307 is about 380.8712855969.

The spelling of 55250307 in words is "fifty-five million, two hundred fifty thousand, three hundred seven".