2251225051 has 16 divisors (see below), whose sum is σ = 2514218400. Its totient is φ = 2003194368.

The previous prime is 2251224971. The next prime is 2251225087. The reversal of 2251225051 is 1505221522.

It is a cyclic number.

It is not a de Polignac number, because 2251225051 - 2⁷ = 2251224923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2251225651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157561 + ... + 171253.

It is an arithmetic number, because the mean of its divisors is an integer number (157138650).

Almost surely, 2^2251225051 is an apocalyptic number.

2251225051 is a deficient number, since it is larger than the sum of its proper divisors (262993349).

2251225051 is a wasteful number, since it uses less digits than its factorization.

2251225051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14238.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2251225051 is about 47447.0763166710. The cubic root of 2251225051 is about 1310.6084718721.

Adding to 2251225051 its reverse (1505221522), we get a palindrome (3756446573).

The spelling of 2251225051 in words is "two billion, two hundred fifty-one million, two hundred twenty-five thousand, fifty-one".