125863587 has 12 divisors (see below), whose sum is σ = 184517320. Its totient is φ = 82656288.

The previous prime is 125863561. The next prime is 125863601. The reversal of 125863587 is 785368521.

125863587 is a `hidden beast` number, since 1 + 2 + 5 + 8 + 63 + 587 = 666.

It is not a de Polignac number, because 125863587 - 2⁶ = 125863523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125863487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103762 + ... + 104967.

Almost surely, 2^125863587 is an apocalyptic number.

125863587 is a deficient number, since it is larger than the sum of its proper divisors (58653733).

125863587 is a wasteful number, since it uses less digits than its factorization.

125863587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208802 (or 208799 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 125863587 is about 11218.8941968449. The cubic root of 125863587 is about 501.1488077931.

The spelling of 125863587 in words is "one hundred twenty-five million, eight hundred sixty-three thousand, five hundred eighty-seven".