81052527 has 16 divisors (see below), whose sum is σ = 109489248. Its totient is φ = 53329920.

The previous prime is 81052523. The next prime is 81052547. The reversal of 81052527 is 72525018.

It is not a de Polignac number, because 81052527 - 2² = 81052523 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 81052494 and 81052503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81052523) 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, 126127 + ... + 126767.

It is an arithmetic number, because the mean of its divisors is an integer number (6843078).

Almost surely, 2^81052527 is an apocalyptic number.

81052527 is a deficient number, since it is larger than the sum of its proper divisors (28436721).

81052527 is a wasteful number, since it uses less digits than its factorization.

81052527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 81052527 is about 9002.9176937257. The cubic root of 81052527 is about 432.7683780964.

The spelling of 81052527 in words is "eighty-one million, fifty-two thousand, five hundred twenty-seven".