725511833 has 2 divisors, whose sum is σ = 725511834. Its totient is φ = 725511832.

The previous prime is 725511823. The next prime is 725511847. The reversal of 725511833 is 338115527.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 724040464 + 1471369 = 26908^2 + 1213^2 .

It is a cyclic number.

It is not a de Polignac number, because 725511833 - 2¹⁶ = 725446297 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 725511793 and 725511802.

It is not a weakly prime, because it can be changed into another prime (725511823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362755916 + 362755917.

It is an arithmetic number, because the mean of its divisors is an integer number (362755917).

Almost surely, 2^725511833 is an apocalyptic number.

It is an amenable number.

725511833 is a deficient number, since it is larger than the sum of its proper divisors (1).

725511833 is an equidigital number, since it uses as much as digits as its factorization.

725511833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 35.

The square root of 725511833 is about 26935.3268589783. The cubic root of 725511833 is about 898.5622447298.

The spelling of 725511833 in words is "seven hundred twenty-five million, five hundred eleven thousand, eight hundred thirty-three".