125291650 has 48 divisors (see below), whose sum is σ = 256724640. Its totient is φ = 45113600.

The previous prime is 125291609. The next prime is 125291651. The reversal of 125291650 is 56192521.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (125291651) 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, 57786 + ... + 59914.

It is an arithmetic number, because the mean of its divisors is an integer number (5348430).

Almost surely, 2^125291650 is an apocalyptic number.

125291650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125291650 is an abundant number, since it is smaller than the sum of its proper divisors (131432990).

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

125291650 is a wasteful number, since it uses less digits than its factorization.

125291650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259 (or 2254 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 125291650 is about 11193.3752729014. The cubic root of 125291650 is about 500.3885646235.

The spelling of 125291650 in words is "one hundred twenty-five million, two hundred ninety-one thousand, six hundred fifty".