2251700072 has 16 divisors (see below), whose sum is σ = 4293496800. Its totient is φ = 1106767600.

The previous prime is 2251700053. The next prime is 2251700081. The reversal of 2251700072 is 2700071522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2384804 + ... + 2385747.

It is an arithmetic number, because the mean of its divisors is an integer number (268343550).

Almost surely, 2^2251700072 is an apocalyptic number.

It is an amenable number.

2251700072 is a deficient number, since it is larger than the sum of its proper divisors (2041796728).

2251700072 is a wasteful number, since it uses less digits than its factorization.

2251700072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770616 (or 4770612 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 2251700072 is about 47452.0818510632. The cubic root of 2251700072 is about 1310.7006472803.

Adding to 2251700072 its reverse (2700071522), we get a palindrome (4951771594).

The spelling of 2251700072 in words is "two billion, two hundred fifty-one million, seven hundred thousand, seventy-two".