725504041 has 4 divisors (see below), whose sum is σ = 742376272. Its totient is φ = 708631812.

The previous prime is 725504033. The next prime is 725504063. The reversal of 725504041 is 140405527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 725504041 - 2³ = 725504033 is a prime.

It is a super-2 number, since 2×725504041² = 1052712227014659362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725504011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8436051 + ... + 8436136.

It is an arithmetic number, because the mean of its divisors is an integer number (185594068).

Almost surely, 2^725504041 is an apocalyptic number.

It is an amenable number.

725504041 is a deficient number, since it is larger than the sum of its proper divisors (16872231).

725504041 is a wasteful number, since it uses less digits than its factorization.

725504041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16872230.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 725504041 is about 26935.1822158307. The cubic root of 725504041 is about 898.5590278643.

Adding to 725504041 its reverse (140405527), we get a palindrome (865909568).

The spelling of 725504041 in words is "seven hundred twenty-five million, five hundred four thousand, forty-one".