72255554 has 8 divisors (see below), whose sum is σ = 123866688. Its totient is φ = 30966660.

The previous prime is 72255551. The next prime is 72255577. The reversal of 72255554 is 45555227.

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

It is not an unprimeable number, because it can be changed into a prime (72255551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2580542 + ... + 2580569.

It is an arithmetic number, because the mean of its divisors is an integer number (15483336).

Almost surely, 2^72255554 is an apocalyptic number.

72255554 is a deficient number, since it is larger than the sum of its proper divisors (51611134).

72255554 is a wasteful number, since it uses less digits than its factorization.

72255554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5161120.

The product of its digits is 70000, while the sum is 35.

The square root of 72255554 is about 8500.3266996040. The cubic root of 72255554 is about 416.5083813352.

The spelling of 72255554 in words is "seventy-two million, two hundred fifty-five thousand, five hundred fifty-four".