55786630 has 8 divisors (see below), whose sum is σ = 100415952. Its totient is φ = 22314648.

The previous prime is 55786613. The next prime is 55786699. The reversal of 55786630 is 3668755.

55786630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55786630² = 6224296173513800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2789322 + ... + 2789341.

It is an arithmetic number, because the mean of its divisors is an integer number (12551994).

Almost surely, 2^55786630 is an apocalyptic number.

55786630 is a deficient number, since it is larger than the sum of its proper divisors (44629322).

55786630 is a wasteful number, since it uses less digits than its factorization.

55786630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5578670.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 55786630 is about 7469.0447849775. The cubic root of 55786630 is about 382.0997108202.

The spelling of 55786630 in words is "fifty-five million, seven hundred eighty-six thousand, six hundred thirty".