72025749 has 12 divisors (see below), whose sum is σ = 104341536. Its totient is φ = 47876712.

The previous prime is 72025747. The next prime is 72025813. The reversal of 72025749 is 94752027.

It is not a de Polignac number, because 72025749 - 2¹ = 72025747 is a prime.

It is a super-2 number, since 2×72025749² = 10375417038022002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72025747) 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 11 ways as a sum of consecutive naturals, for example, 8409 + ... + 14654.

It is an arithmetic number, because the mean of its divisors is an integer number (8695128).

Almost surely, 2^72025749 is an apocalyptic number.

It is an amenable number.

72025749 is a deficient number, since it is larger than the sum of its proper divisors (32315787).

72025749 is a wasteful number, since it uses less digits than its factorization.

72025749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23416 (or 23413 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 72025749 is about 8486.7985129847. The cubic root of 72025749 is about 416.0663513648.

The spelling of 72025749 in words is "seventy-two million, twenty-five thousand, seven hundred forty-nine".