55786150 has 24 divisors (see below), whose sum is σ = 118586160. Its totient is φ = 19126560.

The previous prime is 55786141. The next prime is 55786151. The reversal of 55786150 is 5168755.

It is a super-2 number, since 2×55786150² = 6224189063645000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55786151) 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, 79345 + ... + 80044.

It is an arithmetic number, because the mean of its divisors is an integer number (4941090).

Almost surely, 2^55786150 is an apocalyptic number.

55786150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55786150 is an abundant number, since it is smaller than the sum of its proper divisors (62800010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55786150 is a wasteful number, since it uses less digits than its factorization.

55786150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159408 (or 159403 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 55786150 is about 7469.0126522854. The cubic root of 55786150 is about 382.0986149281.

The spelling of 55786150 in words is "fifty-five million, seven hundred eighty-six thousand, one hundred fifty".