55425719 has 2 divisors, whose sum is σ = 55425720. Its totient is φ = 55425718.

The previous prime is 55425701. The next prime is 55425743. The reversal of 55425719 is 91752455.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55425719 - 2¹⁶ = 55360183 is a prime.

It is a super-2 number, since 2×55425719² = 6144020653333922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55425749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27712859 + 27712860.

It is an arithmetic number, because the mean of its divisors is an integer number (27712860).

Almost surely, 2^55425719 is an apocalyptic number.

55425719 is a deficient number, since it is larger than the sum of its proper divisors (1).

55425719 is an equidigital number, since it uses as much as digits as its factorization.

55425719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63000, while the sum is 38.

The square root of 55425719 is about 7444.8451293496. The cubic root of 55425719 is about 381.2739308099.

The spelling of 55425719 in words is "fifty-five million, four hundred twenty-five thousand, seven hundred nineteen".