125421124050 has 72 divisors (see below), whose sum is σ = 351615423744. Its totient is φ = 31991472480.

The previous prime is 125421123943. The next prime is 125421124069. The reversal of 125421124050 is 50421124521.

It is a happy number.

125421124050 is a `hidden beast` number, since 1 + 2 + 542 + 112 + 4 + 0 + 5 + 0 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6048642 + ... + 6069341.

It is an arithmetic number, because the mean of its divisors is an integer number (4883547552).

Almost surely, 2^125421124050 is an apocalyptic number.

125421124050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125421124050 is an abundant number, since it is smaller than the sum of its proper divisors (226194299694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125421124050 is a wasteful number, since it uses less digits than its factorization.

125421124050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12118024 (or 12118016 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 125421124050 its reverse (50421124521), we get a palindrome (175842248571).

The spelling of 125421124050 in words is "one hundred twenty-five billion, four hundred twenty-one million, one hundred twenty-four thousand, fifty".