125503250061 has 16 divisors (see below), whose sum is σ = 191254783104. Its totient is φ = 71711742144.

The previous prime is 125503250027. The next prime is 125503250111. The reversal of 125503250061 is 160052305521.

It is a happy number.

It is not a de Polignac number, because 125503250061 - 2⁹ = 125503249549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125503250461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184135 + ... + 533771.

It is an arithmetic number, because the mean of its divisors is an integer number (11953423944).

Almost surely, 2^125503250061 is an apocalyptic number.

It is an amenable number.

125503250061 is a deficient number, since it is larger than the sum of its proper divisors (65751533043).

125503250061 is a wasteful number, since it uses less digits than its factorization.

125503250061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366740.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 125503250061 its reverse (160052305521), we get a palindrome (285555555582).

The spelling of 125503250061 in words is "one hundred twenty-five billion, five hundred three million, two hundred fifty thousand, sixty-one".