55650251 has 4 divisors (see below), whose sum is σ = 55735104. Its totient is φ = 55565400.

The previous prime is 55650247. The next prime is 55650253. The reversal of 55650251 is 15205655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55650251 - 2² = 55650247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55650253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41435 + ... + 42756.

It is an arithmetic number, because the mean of its divisors is an integer number (13933776).

Almost surely, 2^55650251 is an apocalyptic number.

55650251 is a deficient number, since it is larger than the sum of its proper divisors (84853).

55650251 is an equidigital number, since it uses as much as digits as its factorization.

55650251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84852.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 55650251 is about 7459.9095839025. The cubic root of 55650251 is about 381.7880895699.

The spelling of 55650251 in words is "fifty-five million, six hundred fifty thousand, two hundred fifty-one".