72628255 has 16 divisors (see below), whose sum is σ = 100869120. Its totient is φ = 49169952.

The previous prime is 72628253. The next prime is 72628313. The reversal of 72628255 is 55282627.

It is a cyclic number.

It is not a de Polignac number, because 72628255 - 2¹ = 72628253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72628253) 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, 10369 + ... + 15898.

It is an arithmetic number, because the mean of its divisors is an integer number (6304320).

Almost surely, 2^72628255 is an apocalyptic number.

72628255 is a deficient number, since it is larger than the sum of its proper divisors (28240865).

72628255 is a wasteful number, since it uses less digits than its factorization.

72628255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26358.

The product of its digits is 67200, while the sum is 37.

The square root of 72628255 is about 8522.2212480081. The cubic root of 72628255 is about 417.2232834732.

It can be divided in two parts, 7 and 2628255, that added together give a palindrome (2628262).

The spelling of 72628255 in words is "seventy-two million, six hundred twenty-eight thousand, two hundred fifty-five".