55786582 has 4 divisors (see below), whose sum is σ = 83679876. Its totient is φ = 27893290.

The previous prime is 55786579. The next prime is 55786583. The reversal of 55786582 is 28568755.

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

It is a super-2 number, since 2×55786582² = 6224285462485448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55786583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13946644 + ... + 13946647.

It is an arithmetic number, because the mean of its divisors is an integer number (20919969).

Almost surely, 2^55786582 is an apocalyptic number.

55786582 is a deficient number, since it is larger than the sum of its proper divisors (27893294).

55786582 is a wasteful number, since it uses less digits than its factorization.

55786582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27893293.

The product of its digits is 672000, while the sum is 46.

The square root of 55786582 is about 7469.0415717145. The cubic root of 55786582 is about 382.0996012313.

The spelling of 55786582 in words is "fifty-five million, seven hundred eighty-six thousand, five hundred eighty-two".