87389756455225 has 48 divisors (see below), whose sum is σ = 124832647183360. Its totient is φ = 59446989288000.

The previous prime is 87389756455219. The next prime is 87389756455373. The reversal of 87389756455225 is 52255465798378.

It is a de Polignac number, because none of the positive numbers 2^k-87389756455225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17290534 + ... + 21765616.

Almost surely, 2^{87389756455225} is an apocalyptic number.

It is an amenable number.

87389756455225 is a deficient number, since it is larger than the sum of its proper divisors (37442890728135).

87389756455225 is a wasteful number, since it uses less digits than its factorization.

87389756455225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475990 (or 4475985 counting only the distinct ones).

The product of its digits is 5080320000, while the sum is 76.

The spelling of 87389756455225 in words is "eighty-seven trillion, three hundred eighty-nine billion, seven hundred fifty-six million, four hundred fifty-five thousand, two hundred twenty-five".