125052502155 has 32 divisors (see below), whose sum is σ = 228774647808. Its totient is φ = 57140054400.

The previous prime is 125052502147. The next prime is 125052502213. The reversal of 125052502155 is 551205250521.

It is a happy number.

It is not a de Polignac number, because 125052502155 - 2³ = 125052502147 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53331 + ... + 502940.

It is an arithmetic number, because the mean of its divisors is an integer number (7149207744).

Almost surely, 2^125052502155 is an apocalyptic number.

125052502155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125052502155 is a deficient number, since it is larger than the sum of its proper divisors (103722145653).

125052502155 is a wasteful number, since it uses less digits than its factorization.

125052502155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558427.

The product of its (nonzero) digits is 25000, while the sum is 33.

Adding to 125052502155 its reverse (551205250521), we get a palindrome (676257752676).

The spelling of 125052502155 in words is "one hundred twenty-five billion, fifty-two million, five hundred two thousand, one hundred fifty-five".