90089529031 has 2 divisors, whose sum is σ = 90089529032. Its totient is φ = 90089529030.

The previous prime is 90089529029. The next prime is 90089529043. The reversal of 90089529031 is 13092598009.

It is a weak prime.

It is an emirp because it is prime and its reverse (13092598009) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90089529031 - 2¹ = 90089529029 is a prime.

It is a super-2 number, since 2×90089529031² (a number of 23 digits) contains 22 as substring.

Together with 90089529029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90089529631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45044764515 + 45044764516.

It is an arithmetic number, because the mean of its divisors is an integer number (45044764516).

Almost surely, 2^90089529031 is an apocalyptic number.

90089529031 is a deficient number, since it is larger than the sum of its proper divisors (1).

90089529031 is an equidigital number, since it uses as much as digits as its factorization.

90089529031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 46.

The spelling of 90089529031 in words is "ninety billion, eighty-nine million, five hundred twenty-nine thousand, thirty-one".