2251394011 has 4 divisors (see below), whose sum is σ = 2251540912. Its totient is φ = 2251247112.

The previous prime is 2251393987. The next prime is 2251394029. The reversal of 2251394011 is 1104931522.

2251394011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1104931522 = 2 ⋅552465761.

It is a cyclic number.

It is not a de Polignac number, because 2251394011 - 2⁹ = 2251393499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251397011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47376 + ... + 82141.

It is an arithmetic number, because the mean of its divisors is an integer number (562885228).

Almost surely, 2^2251394011 is an apocalyptic number.

2251394011 is a deficient number, since it is larger than the sum of its proper divisors (146901).

2251394011 is a wasteful number, since it uses less digits than its factorization.

2251394011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146900.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2251394011 is about 47448.8567933939. The cubic root of 2251394011 is about 1310.6412591861.

The spelling of 2251394011 in words is "two billion, two hundred fifty-one million, three hundred ninety-four thousand, eleven".