125412550 has 24 divisors (see below), whose sum is σ = 233719416. Its totient is φ = 50067840.

The previous prime is 125412541. The next prime is 125412557. The reversal of 125412550 is 55214521.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125412557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27214 + ... + 31486.

It is an arithmetic number, because the mean of its divisors is an integer number (9738309).

Almost surely, 2^125412550 is an apocalyptic number.

125412550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125412550 is a deficient number, since it is larger than the sum of its proper divisors (108306866).

125412550 is a wasteful number, since it uses less digits than its factorization.

125412550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872 (or 4867 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 125412550 is about 11198.7744865231. The cubic root of 125412550 is about 500.5494626271.

The spelling of 125412550 in words is "one hundred twenty-five million, four hundred twelve thousand, five hundred fifty".