264896251 has 4 divisors (see below), whose sum is σ = 264986512. Its totient is φ = 264805992.

The previous prime is 264896249. The next prime is 264896257. The reversal of 264896251 is 152698462.

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 264896251 - 2¹ = 264896249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264896198 and 264896207.

It is not an unprimeable number, because it can be changed into a prime (264896257) 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, 40575 + ... + 46648.

It is an arithmetic number, because the mean of its divisors is an integer number (66246628).

Almost surely, 2^264896251 is an apocalyptic number.

264896251 is a deficient number, since it is larger than the sum of its proper divisors (90261).

264896251 is an equidigital number, since it uses as much as digits as its factorization.

264896251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90260.

The product of its digits is 207360, while the sum is 43.

The square root of 264896251 is about 16275.6336589394. The cubic root of 264896251 is about 642.2319944872.

The spelling of 264896251 in words is "two hundred sixty-four million, eight hundred ninety-six thousand, two hundred fifty-one".