72523576 has 16 divisors (see below), whose sum is σ = 136088640. Its totient is φ = 36233280.

The previous prime is 72523559. The next prime is 72523579. The reversal of 72523576 is 67532527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72523579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10521 + ... + 15991.

It is an arithmetic number, because the mean of its divisors is an integer number (8505540).

Almost surely, 2^72523576 is an apocalyptic number.

It is an amenable number.

72523576 is a deficient number, since it is larger than the sum of its proper divisors (63565064).

72523576 is a wasteful number, since it uses less digits than its factorization.

72523576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7134 (or 7130 counting only the distinct ones).

The product of its digits is 88200, while the sum is 37.

The square root of 72523576 is about 8516.0775008216. The cubic root of 72523576 is about 417.0227393205.

The spelling of 72523576 in words is "seventy-two million, five hundred twenty-three thousand, five hundred seventy-six".