55190699 has 2 divisors, whose sum is σ = 55190700. Its totient is φ = 55190698.

The previous prime is 55190677. The next prime is 55190753. The reversal of 55190699 is 99609155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55190699 - 2¹⁶ = 55125163 is a prime.

It is a super-2 number, since 2×55190699² = 6092026512217202, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55190099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27595349 + 27595350.

It is an arithmetic number, because the mean of its divisors is an integer number (27595350).

Almost surely, 2^55190699 is an apocalyptic number.

55190699 is a deficient number, since it is larger than the sum of its proper divisors (1).

55190699 is an equidigital number, since it uses as much as digits as its factorization.

55190699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 109350, while the sum is 44.

The square root of 55190699 is about 7429.0442857746. The cubic root of 55190699 is about 380.7342658755.

The spelling of 55190699 in words is "fifty-five million, one hundred ninety thousand, six hundred ninety-nine".