725630782 has 4 divisors (see below), whose sum is σ = 1088446176. Its totient is φ = 362815390.

The previous prime is 725630701. The next prime is 725630783. The reversal of 725630782 is 287036527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 287036527 = 23 ⋅12479849.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725630783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181407694 + ... + 181407697.

It is an arithmetic number, because the mean of its divisors is an integer number (272111544).

Almost surely, 2^725630782 is an apocalyptic number.

725630782 is a deficient number, since it is larger than the sum of its proper divisors (362815394).

725630782 is a wasteful number, since it uses less digits than its factorization.

725630782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362815393.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 725630782 is about 26937.5348166828. The cubic root of 725630782 is about 898.6113490241.

The spelling of 725630782 in words is "seven hundred twenty-five million, six hundred thirty thousand, seven hundred eighty-two".