72625801 has 4 divisors (see below), whose sum is σ = 74397204. Its totient is φ = 70854400.

The previous prime is 72625781. The next prime is 72625841. The reversal of 72625801 is 10852627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10852627 = 2269 ⋅4783.

It can be written as a sum of positive squares in 2 ways, for example, as 7420176 + 65205625 = 2724^2 + 8075^2 .

It is a cyclic number.

It is not a de Polignac number, because 72625801 - 2⁵ = 72625769 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72625841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885640 + ... + 885721.

It is an arithmetic number, because the mean of its divisors is an integer number (18599301).

Almost surely, 2^72625801 is an apocalyptic number.

It is an amenable number.

72625801 is a deficient number, since it is larger than the sum of its proper divisors (1771403).

72625801 is a wasteful number, since it uses less digits than its factorization.

72625801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771402.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 72625801 is about 8522.0772702434. The cubic root of 72625801 is about 417.2185843036.

The spelling of 72625801 in words is "seventy-two million, six hundred twenty-five thousand, eight hundred one".