55782711 has 12 divisors (see below), whose sum is σ = 80743000. Its totient is φ = 37110960.

The previous prime is 55782697. The next prime is 55782719. The reversal of 55782711 is 11728755.

It is not a de Polignac number, because 55782711 - 2⁶ = 55782647 is a prime.

It is a super-2 number, since 2×55782711² = 6223421693019042, 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 (55782719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1720 + ... + 10701.

Almost surely, 2^55782711 is an apocalyptic number.

55782711 is a deficient number, since it is larger than the sum of its proper divisors (24960289).

55782711 is a wasteful number, since it uses less digits than its factorization.

55782711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12926 (or 12923 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The square root of 55782711 is about 7468.7824308919. The cubic root of 55782711 is about 382.0907631337.

The spelling of 55782711 in words is "fifty-five million, seven hundred eighty-two thousand, seven hundred eleven".