2251881480 has 32 divisors (see below), whose sum is σ = 6755644800. Its totient is φ = 600501696.

The previous prime is 2251881469. The next prime is 2251881487. The reversal of 2251881480 is 841881522.

It is not an unprimeable number, because it can be changed into a prime (2251881487) 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, 9382720 + ... + 9382959.

It is an arithmetic number, because the mean of its divisors is an integer number (211113900).

Almost surely, 2^2251881480 is an apocalyptic number.

2251881480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2251881480 is an abundant number, since it is smaller than the sum of its proper divisors (4503763320).

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

2251881480 is a wasteful number, since it uses less digits than its factorization.

2251881480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18765693 (or 18765689 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The square root of 2251881480 is about 47453.9932987731. The cubic root of 2251881480 is about 1310.7358451590.

The spelling of 2251881480 in words is "two billion, two hundred fifty-one million, eight hundred eighty-one thousand, four hundred eighty".