125555548479 has 8 divisors (see below), whose sum is σ = 167439239472. Its totient is φ = 83687778240.

The previous prime is 125555548451. The next prime is 125555548507. The reversal of 125555548479 is 974845555521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125555548451) and next prime (125555548507).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125555548479 - 2¹³ = 125555540287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125555548439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3961774 + ... + 3993339.

It is an arithmetic number, because the mean of its divisors is an integer number (20929904934).

Almost surely, 2^125555548479 is an apocalyptic number.

125555548479 is a deficient number, since it is larger than the sum of its proper divisors (41883690993).

125555548479 is an equidigital number, since it uses as much as digits as its factorization.

125555548479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7960377.

The product of its digits is 50400000, while the sum is 60.

The spelling of 125555548479 in words is "one hundred twenty-five billion, five hundred fifty-five million, five hundred forty-eight thousand, four hundred seventy-nine".