725156269 has 2 divisors, whose sum is σ = 725156270. Its totient is φ = 725156268.

The previous prime is 725156221. The next prime is 725156273. The reversal of 725156269 is 962651527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 447534025 + 277622244 = 21155^2 + 16662^2 .

It is an emirp because it is prime and its reverse (962651527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725156269 - 2¹³ = 725148077 is a prime.

It is a super-2 number, since 2×725156269² = 1051703228940000722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725156569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362578134 + 362578135.

It is an arithmetic number, because the mean of its divisors is an integer number (362578135).

Almost surely, 2^725156269 is an apocalyptic number.

It is an amenable number.

725156269 is a deficient number, since it is larger than the sum of its proper divisors (1).

725156269 is an equidigital number, since it uses as much as digits as its factorization.

725156269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 43.

The square root of 725156269 is about 26928.7257218012. The cubic root of 725156269 is about 898.4154294842.

The spelling of 725156269 in words is "seven hundred twenty-five million, one hundred fifty-six thousand, two hundred sixty-nine".