7123252251 has 16 divisors (see below), whose sum is σ = 9661893120. Its totient is φ = 4666777440.

The previous prime is 7123252249. The next prime is 7123252291. The reversal of 7123252251 is 1522523217.

It is not a de Polignac number, because 7123252251 - 2¹ = 7123252249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7123252231) 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, 777966 + ... + 787068.

It is an arithmetic number, because the mean of its divisors is an integer number (603868320).

Almost surely, 2^7123252251 is an apocalyptic number.

7123252251 is a deficient number, since it is larger than the sum of its proper divisors (2538640869).

7123252251 is a wasteful number, since it uses less digits than its factorization.

7123252251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13586.

The product of its digits is 8400, while the sum is 30.

The square root of 7123252251 is about 84399.3616741264. The cubic root of 7123252251 is about 1924.0932144324.

Adding to 7123252251 its reverse (1522523217), we get a palindrome (8645775468).

The spelling of 7123252251 in words is "seven billion, one hundred twenty-three million, two hundred fifty-two thousand, two hundred fifty-one".