55994251 has 2 divisors, whose sum is σ = 55994252. Its totient is φ = 55994250.

The previous prime is 55994231. The next prime is 55994269. The reversal of 55994251 is 15249955.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55994251 - 2¹³ = 55986059 is a prime.

It is a super-2 number, since 2×55994251² = 6270712290102002, which contains 22 as substring.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (55994201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27997125 + 27997126.

It is an arithmetic number, because the mean of its divisors is an integer number (27997126).

Almost surely, 2^55994251 is an apocalyptic number.

55994251 is a deficient number, since it is larger than the sum of its proper divisors (1).

55994251 is an equidigital number, since it uses as much as digits as its factorization.

55994251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 40.

The square root of 55994251 is about 7482.9306424689. The cubic root of 55994251 is about 382.5731439143.

The spelling of 55994251 in words is "fifty-five million, nine hundred ninety-four thousand, two hundred fifty-one".