725272642 has 8 divisors (see below), whose sum is σ = 1088499132. Its totient is φ = 362439600.

The previous prime is 725272637. The next prime is 725272679. The reversal of 725272642 is 246272527.

It can be written as a sum of positive squares in 2 ways, for example, as 467381161 + 257891481 = 21619^2 + 16059^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93709 + ... + 101152.

Almost surely, 2^725272642 is an apocalyptic number.

725272642 is a deficient number, since it is larger than the sum of its proper divisors (363226490).

725272642 is a wasteful number, since it uses less digits than its factorization.

725272642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196724.

The product of its digits is 94080, while the sum is 37.

The square root of 725272642 is about 26930.8863946213. The cubic root of 725272642 is about 898.4634861174.

The spelling of 725272642 in words is "seven hundred twenty-five million, two hundred seventy-two thousand, six hundred forty-two".