72025543 has 2 divisors, whose sum is σ = 72025544. Its totient is φ = 72025542.

The previous prime is 72025537. The next prime is 72025601. The reversal of 72025543 is 34552027.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72025543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72022543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36012771 + 36012772.

It is an arithmetic number, because the mean of its divisors is an integer number (36012772).

Almost surely, 2^72025543 is an apocalyptic number.

72025543 is a deficient number, since it is larger than the sum of its proper divisors (1).

72025543 is an equidigital number, since it uses as much as digits as its factorization.

72025543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 72025543 is about 8486.7863764796. The cubic root of 72025543 is about 416.0659547023.

The spelling of 72025543 in words is "seventy-two million, twenty-five thousand, five hundred forty-three".