2251626012 has 60 divisors (see below), whose sum is σ = 5912093880. Its totient is φ = 747239904.

The previous prime is 2251626011. The next prime is 2251626017. The reversal of 2251626012 is 2106261522.

2251626012 is a `hidden beast` number, since 2 + 2 + 51 + 6 + 2 + 601 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251626011) 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 19 ways as a sum of consecutive naturals, for example, 59023 + ... + 89369.

It is an arithmetic number, because the mean of its divisors is an integer number (98534898).

Almost surely, 2^2251626012 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 2251626012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2956046940).

2251626012 is an abundant number, since it is smaller than the sum of its proper divisors (3660467868).

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

2251626012 is a wasteful number, since it uses less digits than its factorization.

2251626012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30592 (or 30581 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2251626012 is about 47451.3014784632. The cubic root of 2251626012 is about 1310.6862771672.

Adding to 2251626012 its reverse (2106261522), we get a palindrome (4357887534).

The spelling of 2251626012 in words is "two billion, two hundred fifty-one million, six hundred twenty-six thousand, twelve".