72355025 has 12 divisors (see below), whose sum is σ = 91808112. Its totient is φ = 56537040.

The previous prime is 72355013. The next prime is 72355039. The reversal of 72355025 is 52055327.

It is a de Polignac number, because none of the positive numbers 2^k-72355025 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32579 + ... + 34728.

It is an arithmetic number, because the mean of its divisors is an integer number (7650676).

Almost surely, 2^72355025 is an apocalyptic number.

It is an amenable number.

72355025 is a deficient number, since it is larger than the sum of its proper divisors (19453087).

72355025 is a wasteful number, since it uses less digits than its factorization.

72355025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67360 (or 67355 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 72355025 is about 8506.1756976916. The cubic root of 72355025 is about 416.6994232025.

The spelling of 72355025 in words is "seventy-two million, three hundred fifty-five thousand, twenty-five".