27572540 has 24 divisors (see below), whose sum is σ = 58007040. Its totient is φ = 11009088.

The previous prime is 27572539. The next prime is 27572543. The reversal of 27572540 is 4527572.

It is a junction number, because it is equal to n+sod(n) for n = 27572497 and 27572506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27572543) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15749 + ... + 17411.

It is an arithmetic number, because the mean of its divisors is an integer number (2416960).

Almost surely, 2^27572540 is an apocalyptic number.

27572540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27572540 is an abundant number, since it is smaller than the sum of its proper divisors (30434500).

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

27572540 is a wasteful number, since it uses less digits than its factorization.

27572540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501 (or 2499 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 27572540 is about 5250.9561034158. The cubic root of 27572540 is about 302.1057039742.

The spelling of 27572540 in words is "twenty-seven million, five hundred seventy-two thousand, five hundred forty".