11525582587 has 2 divisors, whose sum is σ = 11525582588. Its totient is φ = 11525582586.

The previous prime is 11525582461. The next prime is 11525582591. The reversal of 11525582587 is 78528552511.

It is a strong prime.

It is an emirp because it is prime and its reverse (78528552511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11525582587 is a prime.

It is a super-2 number, since 2×11525582587² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11525582587.

It is not a weakly prime, because it can be changed into another prime (11525582687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5762791293 + 5762791294.

It is an arithmetic number, because the mean of its divisors is an integer number (5762791294).

Almost surely, 2^11525582587 is an apocalyptic number.

11525582587 is a deficient number, since it is larger than the sum of its proper divisors (1).

11525582587 is an equidigital number, since it uses as much as digits as its factorization.

11525582587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1120000, while the sum is 49.

The spelling of 11525582587 in words is "eleven billion, five hundred twenty-five million, five hundred eighty-two thousand, five hundred eighty-seven".