27750051 has 48 divisors (see below), whose sum is σ = 48921600. Its totient is φ = 14805504.

The previous prime is 27750049. The next prime is 27750061. The reversal of 27750051 is 15005772.

It is not a de Polignac number, because 27750051 - 2¹ = 27750049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27749997 and 27750024.

It is not an unprimeable number, because it can be changed into a prime (27750031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115990 + ... + 116228.

It is an arithmetic number, because the mean of its divisors is an integer number (1019200).

Almost surely, 2^27750051 is an apocalyptic number.

27750051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27750051 is a deficient number, since it is larger than the sum of its proper divisors (21171549).

27750051 is a wasteful number, since it uses less digits than its factorization.

27750051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 27750051 is about 5267.8317171299. The cubic root of 27750051 is about 302.7526327954.

The spelling of 27750051 in words is "twenty-seven million, seven hundred fifty thousand, fifty-one".