125020505151 has 24 divisors (see below), whose sum is σ = 194515316736. Its totient is φ = 77151499920.

The previous prime is 125020505123. The next prime is 125020505227. The reversal of 125020505151 is 151505020521.

125020505151 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 2 + 0 + 505 + 151 = 666.

It is not a de Polignac number, because 125020505151 - 2²² = 125016310847 is a prime.

It is a super-2 number, since 2×125020505151² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125020505111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9734935 + ... + 9747768.

It is an arithmetic number, because the mean of its divisors is an integer number (8104804864).

Almost surely, 2^125020505151 is an apocalyptic number.

125020505151 is a deficient number, since it is larger than the sum of its proper divisors (69494811585).

125020505151 is a wasteful number, since it uses less digits than its factorization.

125020505151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19482763 (or 19482760 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

Adding to 125020505151 its reverse (151505020521), we get a palindrome (276525525672).

The spelling of 125020505151 in words is "one hundred twenty-five billion, twenty million, five hundred five thousand, one hundred fifty-one".