27213020250 has 128 divisors (see below), whose sum is σ = 73727926272. Its totient is φ = 6645542400.

The previous prime is 27213020243. The next prime is 27213020251. The reversal of 27213020250 is 5202031272.

It is a happy number.

It is a super-2 number, since 2×27213020250² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27213020250.

It is not an unprimeable number, because it can be changed into a prime (27213020251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1227262 + ... + 1249238.

It is an arithmetic number, because the mean of its divisors is an integer number (575999424).

Almost surely, 2^27213020250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27213020250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36863963136).

27213020250 is an abundant number, since it is smaller than the sum of its proper divisors (46514906022).

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

27213020250 is a wasteful number, since it uses less digits than its factorization.

27213020250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22137 (or 22127 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The spelling of 27213020250 in words is "twenty-seven billion, two hundred thirteen million, twenty thousand, two hundred fifty".