72555255527 has 16 divisors (see below), whose sum is σ = 76675368960. Its totient is φ = 68543851488.

The previous prime is 72555255523. The next prime is 72555255529.

72555255527 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 72555255527 - 2² = 72555255523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72555255523) 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, 8564948 + ... + 8573414.

It is an arithmetic number, because the mean of its divisors is an integer number (4792210560).

Almost surely, 2^72555255527 is an apocalyptic number.

72555255527 is a deficient number, since it is larger than the sum of its proper divisors (4120113433).

72555255527 is a wasteful number, since it uses less digits than its factorization.

72555255527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14830.

The product of its digits is 6125000, while the sum is 50.

The spelling of 72555255527 in words is "seventy-two billion, five hundred fifty-five million, two hundred fifty-five thousand, five hundred twenty-seven".