2125265251 has 12 divisors (see below), whose sum is σ = 2355800112. Its totient is φ = 1913276288.

The previous prime is 2125265221. The next prime is 2125265291. The reversal of 2125265251 is 1525625212.

It is a happy number.

It is not a de Polignac number, because 2125265251 - 2¹³ = 2125257059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125265201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153220 + ... + 166513.

It is an arithmetic number, because the mean of its divisors is an integer number (196316676).

Almost surely, 2^2125265251 is an apocalyptic number.

2125265251 is a deficient number, since it is larger than the sum of its proper divisors (230534861).

2125265251 is a wasteful number, since it uses less digits than its factorization.

2125265251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319790 (or 319773 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The square root of 2125265251 is about 46100.5992477321. The cubic root of 2125265251 is about 1285.6942860457.

The spelling of 2125265251 in words is "two billion, one hundred twenty-five million, two hundred sixty-five thousand, two hundred fifty-one".