72255125 has 8 divisors (see below), whose sum is σ = 90174552. Its totient is φ = 57804000.

The previous prime is 72255107. The next prime is 72255133. The reversal of 72255125 is 52155227.

It can be written as a sum of positive squares in 4 ways, for example, as 1661521 + 70593604 = 1289^2 + 8402^2 .

It is not a de Polignac number, because 72255125 - 2⁶ = 72255061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288896 + ... + 289145.

It is an arithmetic number, because the mean of its divisors is an integer number (11271819).

Almost surely, 2^72255125 is an apocalyptic number.

It is an amenable number.

72255125 is a deficient number, since it is larger than the sum of its proper divisors (17919427).

72255125 is an equidigital number, since it uses as much as digits as its factorization.

72255125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578056 (or 578046 counting only the distinct ones).

The product of its digits is 7000, while the sum is 29.

The square root of 72255125 is about 8500.3014652423. The cubic root of 72255125 is about 416.5075570274.

The spelling of 72255125 in words is "seventy-two million, two hundred fifty-five thousand, one hundred twenty-five".