72532345 has 8 divisors (see below), whose sum is σ = 87085440. Its totient is φ = 57994800.

The previous prime is 72532333. The next prime is 72532351. The reversal of 72532345 is 54323527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-72532345 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13270 + ... + 17920.

It is an arithmetic number, because the mean of its divisors is an integer number (10885680).

Almost surely, 2^72532345 is an apocalyptic number.

It is an amenable number.

72532345 is a deficient number, since it is larger than the sum of its proper divisors (14553095).

72532345 is a wasteful number, since it uses less digits than its factorization.

72532345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7775.

The product of its digits is 25200, while the sum is 31.

The square root of 72532345 is about 8516.5923349659. The cubic root of 72532345 is about 417.0395463840.

It can be divided in two parts, 7 and 2532345, that added together give a palindrome (2532352).

The spelling of 72532345 in words is "seventy-two million, five hundred thirty-two thousand, three hundred forty-five".