725133743 has 4 divisors (see below), whose sum is σ = 725191920. Its totient is φ = 725075568.

The previous prime is 725133683. The next prime is 725133781. The reversal of 725133743 is 347331527.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 347331527 = 10313 ⋅33679.

It is a cyclic number.

It is not a de Polignac number, because 725133743 - 2¹⁸ = 724871599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725130743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1955 + ... + 38132.

It is an arithmetic number, because the mean of its divisors is an integer number (181297980).

Almost surely, 2^725133743 is an apocalyptic number.

725133743 is a deficient number, since it is larger than the sum of its proper divisors (58177).

725133743 is a wasteful number, since it uses less digits than its factorization.

725133743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58176.

The product of its digits is 52920, while the sum is 35.

The square root of 725133743 is about 26928.3074663076. The cubic root of 725133743 is about 898.4061267006.

The spelling of 725133743 in words is "seven hundred twenty-five million, one hundred thirty-three thousand, seven hundred forty-three".