725501503 has 8 divisors (see below), whose sum is σ = 770956272. Its totient is φ = 680355456.

The previous prime is 725501473. The next prime is 725501507. The reversal of 725501503 is 305105527.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725501503 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 (725501507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72325 + ... + 81742.

It is an arithmetic number, because the mean of its divisors is an integer number (96369534).

Almost surely, 2^725501503 is an apocalyptic number.

725501503 is a deficient number, since it is larger than the sum of its proper divisors (45454769).

725501503 is a wasteful number, since it uses less digits than its factorization.

725501503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154361.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 725501503 is about 26935.1351026870. The cubic root of 725501503 is about 898.5579800661.

The spelling of 725501503 in words is "seven hundred twenty-five million, five hundred one thousand, five hundred three".