2051225051 has 4 divisors (see below), whose sum is σ = 2051355600. Its totient is φ = 2051094504.

The previous prime is 2051225021. The next prime is 2051225107. The reversal of 2051225051 is 1505221502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2051225051 - 2¹⁴ = 2051208667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051225021) 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, 37871 + ... + 74408.

It is an arithmetic number, because the mean of its divisors is an integer number (512838900).

Almost surely, 2^2051225051 is an apocalyptic number.

2051225051 is a deficient number, since it is larger than the sum of its proper divisors (130549).

2051225051 is a wasteful number, since it uses less digits than its factorization.

2051225051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130548.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2051225051 is about 45290.4520953368. The cubic root of 2051225051 is about 1270.5870869450.

Adding to 2051225051 its reverse (1505221502), we get a palindrome (3556446553).

The spelling of 2051225051 in words is "two billion, fifty-one million, two hundred twenty-five thousand, fifty-one".