72555627031 has 2 divisors, whose sum is σ = 72555627032. Its totient is φ = 72555627030.

The previous prime is 72555627019. The next prime is 72555627073. The reversal of 72555627031 is 13072655527.

It is a weak prime.

It is an emirp because it is prime and its reverse (13072655527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72555627031 - 2¹⁹ = 72555102743 is a prime.

It is a super-2 number, since 2×72555627031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72555627091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36277813515 + 36277813516.

It is an arithmetic number, because the mean of its divisors is an integer number (36277813516).

Almost surely, 2^72555627031 is an apocalyptic number.

72555627031 is a deficient number, since it is larger than the sum of its proper divisors (1).

72555627031 is an equidigital number, since it uses as much as digits as its factorization.

72555627031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 441000, while the sum is 43.

The spelling of 72555627031 in words is "seventy-two billion, five hundred fifty-five million, six hundred twenty-seven thousand, thirty-one".