27213256 has 32 divisors (see below), whose sum is σ = 59192640. Its totient is φ = 11487168.

The previous prime is 27213247. The next prime is 27213287. The reversal of 27213256 is 65231272.

It is a super-2 number, since 2×27213256² = 1481122604243072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126 + ... + 7378.

It is an arithmetic number, because the mean of its divisors is an integer number (1849770).

Almost surely, 2^27213256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27213256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29596320).

27213256 is an abundant number, since it is smaller than the sum of its proper divisors (31979384).

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

27213256 is a wasteful number, since it uses less digits than its factorization.

27213256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7333 (or 7329 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 27213256 is about 5216.6326303469. The cubic root of 27213256 is about 300.7877666388.

The spelling of 27213256 in words is "twenty-seven million, two hundred thirteen thousand, two hundred fifty-six".