55177319 has 2 divisors, whose sum is σ = 55177320. Its totient is φ = 55177318.

The previous prime is 55177289. The next prime is 55177333. The reversal of 55177319 is 91377155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55177319 - 2¹⁶ = 55111783 is a prime.

It is a super-2 number, since 2×55177319² = 6089073064055522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55177519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27588659 + 27588660.

It is an arithmetic number, because the mean of its divisors is an integer number (27588660).

Almost surely, 2^55177319 is an apocalyptic number.

55177319 is a deficient number, since it is larger than the sum of its proper divisors (1).

55177319 is an equidigital number, since it uses as much as digits as its factorization.

55177319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33075, while the sum is 38.

The square root of 55177319 is about 7428.1437115877. The cubic root of 55177319 is about 380.7034959795.

The spelling of 55177319 in words is "fifty-five million, one hundred seventy-seven thousand, three hundred nineteen".