72351573 has 16 divisors (see below), whose sum is σ = 110368896. Its totient is φ = 41299200.

The previous prime is 72351557. The next prime is 72351577. The reversal of 72351573 is 37515327.

It is not a de Polignac number, because 72351573 - 2⁴ = 72351557 is a prime.

It is a Curzon number.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72351577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36865 + ... + 38777.

It is an arithmetic number, because the mean of its divisors is an integer number (6898056).

Almost surely, 2^72351573 is an apocalyptic number.

It is an amenable number.

72351573 is a deficient number, since it is larger than the sum of its proper divisors (38017323).

72351573 is a wasteful number, since it uses less digits than its factorization.

72351573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724.

The product of its digits is 22050, while the sum is 33.

The square root of 72351573 is about 8505.9727838737. The cubic root of 72351573 is about 416.6927962991.

The spelling of 72351573 in words is "seventy-two million, three hundred fifty-one thousand, five hundred seventy-three".