2251251464 has 96 divisors (see below), whose sum is σ = 5321447040. Its totient is φ = 873987840.

The previous prime is 2251251463. The next prime is 2251251511. The reversal of 2251251464 is 4641521522.

It is a self number, because there is not a number n which added to its sum of digits gives 2251251464.

It is not an unprimeable number, because it can be changed into a prime (2251251463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3096269 + ... + 3096995.

It is an arithmetic number, because the mean of its divisors is an integer number (55431740).

Almost surely, 2^2251251464 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 2251251464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2660723520).

2251251464 is an abundant number, since it is smaller than the sum of its proper divisors (3070195576).

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

2251251464 is a wasteful number, since it uses less digits than its factorization.

2251251464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219 (or 1204 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

The square root of 2251251464 is about 47447.3546575570. The cubic root of 2251251464 is about 1310.6135975208.

Adding to 2251251464 its reverse (4641521522), we get a palindrome (6892772986).

The spelling of 2251251464 in words is "two billion, two hundred fifty-one million, two hundred fifty-one thousand, four hundred sixty-four".