55695719 has 4 divisors (see below), whose sum is σ = 58117296. Its totient is φ = 53274144.

The previous prime is 55695713. The next prime is 55695721. The reversal of 55695719 is 91759655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55695719 - 2⁸ = 55695463 is a prime.

It is a super-2 number, since 2×55695719² = 6204026229853922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55695713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1210754 + ... + 1210799.

It is an arithmetic number, because the mean of its divisors is an integer number (14529324).

Almost surely, 2^55695719 is an apocalyptic number.

55695719 is a deficient number, since it is larger than the sum of its proper divisors (2421577).

55695719 is a wasteful number, since it uses less digits than its factorization.

55695719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421576.

The product of its digits is 425250, while the sum is 47.

The square root of 55695719 is about 7462.9564517020. The cubic root of 55695719 is about 381.8920388785.

The spelling of 55695719 in words is "fifty-five million, six hundred ninety-five thousand, seven hundred nineteen".