722525 has 6 divisors (see below), whose sum is σ = 895962. Its totient is φ = 578000.

The previous prime is 722521. The next prime is 722537. The reversal of 722525 is 525227.

722525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 256036 + 466489 = 506^2 + 683^2 .

It is not a de Polignac number, because 722525 - 2² = 722521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14426 + ... + 14475.

It is an arithmetic number, because the mean of its divisors is an integer number (149327).

2⁷²²⁵²⁵ is an apocalyptic number.

It is an amenable number.

722525 is a deficient number, since it is larger than the sum of its proper divisors (173437).

722525 is a wasteful number, since it uses less digits than its factorization.

722525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28911 (or 28906 counting only the distinct ones).

The product of its digits is 1400, while the sum is 23.

The square root of 722525 is about 850.0147057551. The cubic root of 722525 is about 89.7327462740.

It can be divided in two parts, 7225 and 25, that multiplied together give a square (180625 = 425²).

The spelling of 722525 in words is "seven hundred twenty-two thousand, five hundred twenty-five".