125054550 has 96 divisors (see below), whose sum is σ = 364932000. Its totient is φ = 31380480.

The previous prime is 125054539. The next prime is 125054557. The reversal of 125054550 is 55450521.

125054550 is a `hidden beast` number, since 12 + 50 + 54 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125054557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20226 + ... + 25674.

It is an arithmetic number, because the mean of its divisors is an integer number (3801375).

Almost surely, 2^125054550 is an apocalyptic number.

125054550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125054550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182466000).

125054550 is an abundant number, since it is smaller than the sum of its proper divisors (239877450).

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

125054550 is a wasteful number, since it uses less digits than its factorization.

125054550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5487 (or 5476 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 125054550 is about 11182.7791715655. The cubic root of 125054550 is about 500.0727227556.

The spelling of 125054550 in words is "one hundred twenty-five million, fifty-four thousand, five hundred fifty".