125006456887 has 4 divisors (see below), whose sum is σ = 134622338200. Its totient is φ = 115390575576.

The previous prime is 125006456867. The next prime is 125006456909. The reversal of 125006456887 is 788654600521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788654600521 = 6143 ⋅128382647.

It is a cyclic number.

It is not a de Polignac number, because 125006456887 - 2⁷ = 125006456759 is a prime.

It is a super-2 number, since 2×125006456887² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125006456807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4807940637 + ... + 4807940662.

It is an arithmetic number, because the mean of its divisors is an integer number (33655584550).

Almost surely, 2^125006456887 is an apocalyptic number.

125006456887 is a deficient number, since it is larger than the sum of its proper divisors (9615881313).

125006456887 is an equidigital number, since it uses as much as digits as its factorization.

125006456887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9615881312.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 125006456887 in words is "one hundred twenty-five billion, six million, four hundred fifty-six thousand, eight hundred eighty-seven".