725580501 has 16 divisors (see below), whose sum is σ = 988953600. Its totient is φ = 472983408.

The previous prime is 725580487. The next prime is 725580503. The reversal of 725580501 is 105085527.

It is a happy number.

It is not a de Polignac number, because 725580501 - 2⁵ = 725580469 is a prime.

It is a super-2 number, since 2×725580501² = 1052934126862822002, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725580503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221010 + ... + 224268.

It is an arithmetic number, because the mean of its divisors is an integer number (61809600).

Almost surely, 2^725580501 is an apocalyptic number.

It is an amenable number.

725580501 is a deficient number, since it is larger than the sum of its proper divisors (263373099).

725580501 is a wasteful number, since it uses less digits than its factorization.

725580501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888.

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 725580501 is about 26936.6015116978. The cubic root of 725580501 is about 898.5905927745.

The spelling of 725580501 in words is "seven hundred twenty-five million, five hundred eighty thousand, five hundred one".