125005155250 has 32 divisors (see below), whose sum is σ = 244183994496. Its totient is φ = 47828057200.

The previous prime is 125005155221. The next prime is 125005155263. The reversal of 125005155250 is 52551500521.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10864264 + ... + 10875763.

It is an arithmetic number, because the mean of its divisors is an integer number (7630749828).

Almost surely, 2^125005155250 is an apocalyptic number.

125005155250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125005155250 is a deficient number, since it is larger than the sum of its proper divisors (119178839246).

125005155250 is a wasteful number, since it uses less digits than its factorization.

125005155250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21740067 (or 21740057 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 31.

Adding to 125005155250 its reverse (52551500521), we get a palindrome (177556655771).

The spelling of 125005155250 in words is "one hundred twenty-five billion, five million, one hundred fifty-five thousand, two hundred fifty".