87253535487 has 32 divisors (see below), whose sum is σ = 131539783680. Its totient is φ = 51154306560.

The previous prime is 87253535477. The next prime is 87253535543. The reversal of 87253535487 is 78453535278.

It is not a de Polignac number, because 87253535487 - 2⁸ = 87253535231 is a prime.

It is a super-2 number, since 2×87253535487² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87253535417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 905683 + ... + 997380.

It is an arithmetic number, because the mean of its divisors is an integer number (4110618240).

Almost surely, 2^87253535487 is an apocalyptic number.

87253535487 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

87253535487 is a deficient number, since it is larger than the sum of its proper divisors (44286248193).

87253535487 is a wasteful number, since it uses less digits than its factorization.

87253535487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903143.

The product of its digits is 28224000, while the sum is 57.

The spelling of 87253535487 in words is "eighty-seven billion, two hundred fifty-three million, five hundred thirty-five thousand, four hundred eighty-seven".