90027578527 has 2 divisors, whose sum is σ = 90027578528. Its totient is φ = 90027578526.

The previous prime is 90027578503. The next prime is 90027578549. The reversal of 90027578527 is 72587572009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90027578527 - 2¹¹ = 90027576479 is a prime.

It is a super-3 number, since 3×90027578527³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90027578587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45013789263 + 45013789264.

It is an arithmetic number, because the mean of its divisors is an integer number (45013789264).

Almost surely, 2^90027578527 is an apocalyptic number.

90027578527 is a deficient number, since it is larger than the sum of its proper divisors (1).

90027578527 is an equidigital number, since it uses as much as digits as its factorization.

90027578527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2469600, while the sum is 52.

The spelling of 90027578527 in words is "ninety billion, twenty-seven million, five hundred seventy-eight thousand, five hundred twenty-seven".