72551067 has 8 divisors (see below), whose sum is σ = 99855360. Its totient is φ = 46807080.

The previous prime is 72551051. The next prime is 72551081. The reversal of 72551067 is 76015527.

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

It is not a de Polignac number, because 72551067 - 2⁴ = 72551051 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (72501067) 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, 389967 + ... + 390152.

It is an arithmetic number, because the mean of its divisors is an integer number (12481920).

Almost surely, 2^72551067 is an apocalyptic number.

72551067 is a deficient number, since it is larger than the sum of its proper divisors (27304293).

72551067 is a wasteful number, since it uses less digits than its factorization.

72551067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780153.

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 72551067 is about 8517.6914125836. The cubic root of 72551067 is about 417.0754252860.

The spelling of 72551067 in words is "seventy-two million, five hundred fifty-one thousand, sixty-seven".