55769786 has 4 divisors (see below), whose sum is σ = 83654682. Its totient is φ = 27884892.

The previous prime is 55769773. The next prime is 55769801. The reversal of 55769786 is 68796755.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 32547025 + 23222761 = 5705^2 + 4819^2 .

It is a super-2 number, since 2×55769786² = 6220538060971592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13942445 + ... + 13942448.

Almost surely, 2^55769786 is an apocalyptic number.

55769786 is a deficient number, since it is larger than the sum of its proper divisors (27884896).

55769786 is a wasteful number, since it uses less digits than its factorization.

55769786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27884895.

The product of its digits is 3175200, while the sum is 53.

The square root of 55769786 is about 7467.9171125555. The cubic root of 55769786 is about 382.0612503779.

The spelling of 55769786 in words is "fifty-five million, seven hundred sixty-nine thousand, seven hundred eighty-six".