125554133155 has 16 divisors (see below), whose sum is σ = 165544243200. Its totient is φ = 90655169760.

The previous prime is 125554133141. The next prime is 125554133167. The reversal of 125554133155 is 551331455521.

It is not a de Polignac number, because 125554133155 - 2⁹ = 125554132643 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8203875 + ... + 8219164.

It is an arithmetic number, because the mean of its divisors is an integer number (10346515200).

Almost surely, 2^125554133155 is an apocalyptic number.

125554133155 is a deficient number, since it is larger than the sum of its proper divisors (39990110045).

125554133155 is a wasteful number, since it uses less digits than its factorization.

125554133155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16423194.

The product of its digits is 225000, while the sum is 40.

Adding to 125554133155 its reverse (551331455521), we get a palindrome (676885588676).

The spelling of 125554133155 in words is "one hundred twenty-five billion, five hundred fifty-four million, one hundred thirty-three thousand, one hundred fifty-five".