725531622274 has 8 divisors (see below), whose sum is σ = 1152314929548. Its totient is φ = 341426645760.

The previous prime is 725531622259. The next prime is 725531622293. The reversal of 725531622274 is 472226135527.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 685489611249 + 40042011025 = 827943^2 + 200105^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×725531622274² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10669582647 + ... + 10669582714.

Almost surely, 2^725531622274 is an apocalyptic number.

725531622274 is a deficient number, since it is larger than the sum of its proper divisors (426783307274).

725531622274 is a wasteful number, since it uses less digits than its factorization.

725531622274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21339165380.

The product of its digits is 1411200, while the sum is 46.

The spelling of 725531622274 in words is "seven hundred twenty-five billion, five hundred thirty-one million, six hundred twenty-two thousand, two hundred seventy-four".