87225652277 has 8 divisors (see below), whose sum is σ = 91469510040. Its totient is φ = 83064199680.

The previous prime is 87225652147. The next prime is 87225652303. The reversal of 87225652277 is 77225652278.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5581733521 + 81643918756 = 74711^2 + 285734^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87225652277 - 2⁸ = 87225652021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87225651277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20599124 + ... + 20603357.

It is an arithmetic number, because the mean of its divisors is an integer number (11433688755).

Almost surely, 2^87225652277 is an apocalyptic number.

It is an amenable number.

87225652277 is a deficient number, since it is larger than the sum of its proper divisors (4243857763).

87225652277 is a wasteful number, since it uses less digits than its factorization.

87225652277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41202583.

The product of its digits is 6585600, while the sum is 53.

Subtracting from 87225652277 its reverse (77225652278), we obtain a palindrome (9999999999).

The spelling of 87225652277 in words is "eighty-seven billion, two hundred twenty-five million, six hundred fifty-two thousand, two hundred seventy-seven".