715225261 has 4 divisors (see below), whose sum is σ = 715279392. Its totient is φ = 715171132.

The previous prime is 715225237. The next prime is 715225267. The reversal of 715225261 is 162522517.

715225261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 715225261 - 2⁹ = 715224749 is a prime.

It is a super-5 number, since 5×715225261⁵ (a number of 45 digits) contains 55555 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715225267) 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, 7296 + ... + 38518.

It is an arithmetic number, because the mean of its divisors is an integer number (178819848).

Almost surely, 2^715225261 is an apocalyptic number.

It is an amenable number.

715225261 is a deficient number, since it is larger than the sum of its proper divisors (54131).

715225261 is a wasteful number, since it uses less digits than its factorization.

715225261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54130.

The product of its digits is 8400, while the sum is 31.

The square root of 715225261 is about 26743.6957244133. The cubic root of 715225261 is about 894.2952999691.

Adding to 715225261 its reverse (162522517), we get a palindrome (877747778).

The spelling of 715225261 in words is "seven hundred fifteen million, two hundred twenty-five thousand, two hundred sixty-one".