125005050 has 36 divisors (see below), whose sum is σ = 335848110. Its totient is φ = 33334560.

The previous prime is 125005019. The next prime is 125005061. The reversal of 125005050 is 50500521.

It can be written as a sum of positive squares in 3 ways, for example, as 106316721 + 18688329 = 10311^2 + 4323^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 138445 + ... + 139344.

Almost surely, 2^125005050 is an apocalyptic number.

125005050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125005050 is an abundant number, since it is smaller than the sum of its proper divisors (210843060).

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

125005050 is a wasteful number, since it uses less digits than its factorization.

125005050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277807 (or 277799 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 125005050 is about 11180.5657280837. The cubic root of 125005050 is about 500.0067332427.

Adding to 125005050 its reverse (50500521), we get a palindrome (175505571).

The spelling of 125005050 in words is "one hundred twenty-five million, five thousand, fifty".