72520520003 has 8 divisors (see below), whose sum is σ = 76600820736. Its totient is φ = 68549027400.

The previous prime is 72520519943. The next prime is 72520520041. The reversal of 72520520003 is 30002502527.

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

It is a cyclic number.

It is not a de Polignac number, because 72520520003 - 2¹⁶ = 72520454467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72520520903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27200663 + ... + 27203328.

It is an arithmetic number, because the mean of its divisors is an integer number (9575102592).

Almost surely, 2^72520520003 is an apocalyptic number.

72520520003 is a deficient number, since it is larger than the sum of its proper divisors (4080300733).

72520520003 is a wasteful number, since it uses less digits than its factorization.

72520520003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54404065.

The product of its (nonzero) digits is 4200, while the sum is 26.

The spelling of 72520520003 in words is "seventy-two billion, five hundred twenty million, five hundred twenty thousand, three".