725461 has 4 divisors (see below), whose sum is σ = 791424. Its totient is φ = 659500.

The previous prime is 725449. The next prime is 725479. The reversal of 725461 is 164527.

725461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 164527 = 11 ⋅14957.

It is a cyclic number.

It is not a de Polignac number, because 725461 - 2⁹ = 724949 is a prime.

It is a Duffinian number.

725461 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725161) 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, 32965 + ... + 32986.

It is an arithmetic number, because the mean of its divisors is an integer number (197856).

2⁷²⁵⁴⁶¹ is an apocalyptic number.

It is an amenable number.

725461 is a deficient number, since it is larger than the sum of its proper divisors (65963).

725461 is a wasteful number, since it uses less digits than its factorization.

725461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65962.

The product of its digits is 1680, while the sum is 25.

The square root of 725461 is about 851.7399837979. The cubic root of 725461 is about 89.8541258313.

Adding to 725461 its reverse (164527), we get a palindrome (889988).

The spelling of 725461 in words is "seven hundred twenty-five thousand, four hundred sixty-one".