2251253420 has 48 divisors (see below), whose sum is σ = 5215498848. Its totient is φ = 810954240.

The previous prime is 2251253377. The next prime is 2251253443. The reversal of 2251253420 is 243521522.

2251253420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2251253420² = 10136283922123392800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 2251253420.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94934 + ... + 116253.

It is an arithmetic number, because the mean of its divisors is an integer number (108656226).

Almost surely, 2^2251253420 is an apocalyptic number.

2251253420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2251253420 is an abundant number, since it is smaller than the sum of its proper divisors (2964245428).

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

2251253420 is a wasteful number, since it uses less digits than its factorization.

2251253420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211250 (or 211248 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2251253420 is about 47447.3752698714. The cubic root of 2251253420 is about 1310.6139770963.

Adding to 2251253420 its reverse (243521522), we get a palindrome (2494774942).

The spelling of 2251253420 in words is "two billion, two hundred fifty-one million, two hundred fifty-three thousand, four hundred twenty".