27942550 has 24 divisors (see below), whose sum is σ = 52331472. Its totient is φ = 11100000.

The previous prime is 27942517. The next prime is 27942553. The reversal of 27942550 is 5524972.

It is a super-2 number, since 2×27942550² = 1561572201005000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27942553) 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, 5700 + ... + 9400.

It is an arithmetic number, because the mean of its divisors is an integer number (2180478).

Almost surely, 2^27942550 is an apocalyptic number.

27942550 is a deficient number, since it is larger than the sum of its proper divisors (24388922).

27942550 is a wasteful number, since it uses less digits than its factorization.

27942550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864 (or 3859 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 27942550 is about 5286.0713199880. The cubic root of 27942550 is about 303.4510739907.

The spelling of 27942550 in words is "twenty-seven million, nine hundred forty-two thousand, five hundred fifty".