55004951 has 2 divisors, whose sum is σ = 55004952. Its totient is φ = 55004950.

The previous prime is 55004927. The next prime is 55004953. The reversal of 55004951 is 15940055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55004951 - 2¹⁴ = 54988567 is a prime.

It is a Sophie Germain prime.

Together with 55004953, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55004953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27502475 + 27502476.

It is an arithmetic number, because the mean of its divisors is an integer number (27502476).

Almost surely, 2^55004951 is an apocalyptic number.

55004951 is a deficient number, since it is larger than the sum of its proper divisors (1).

55004951 is an equidigital number, since it uses as much as digits as its factorization.

55004951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 55004951 is about 7416.5322759360. The cubic root of 55004951 is about 380.3066568960.

It can be divided in two parts, 55004 and 951, that added together give a palindrome (55955).

The spelling of 55004951 in words is "fifty-five million, four thousand, nine hundred fifty-one".