2251071027 has 16 divisors (see below), whose sum is σ = 3412478080. Its totient is φ = 1465812936.

The previous prime is 2251071023. The next prime is 2251071041. The reversal of 2251071027 is 7201701522.

It is not a de Polignac number, because 2251071027 - 2² = 2251071023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251071023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 968293 + ... + 970614.

It is an arithmetic number, because the mean of its divisors is an integer number (213279880).

Almost surely, 2^2251071027 is an apocalyptic number.

2251071027 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2251071027 is a deficient number, since it is larger than the sum of its proper divisors (1161407053).

2251071027 is a wasteful number, since it uses less digits than its factorization.

2251071027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938959 (or 1938953 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 2251071027 is about 47445.4531751990. The cubic root of 2251071027 is about 1310.5785815149.

Adding to 2251071027 its reverse (7201701522), we get a palindrome (9452772549).

The spelling of 2251071027 in words is "two billion, two hundred fifty-one million, seventy-one thousand, twenty-seven".