125222550 has 48 divisors (see below), whose sum is σ = 311243472. Its totient is φ = 33318400.

The previous prime is 125222477. The next prime is 125222593. The reversal of 125222550 is 55222521.

It is a self number, because there is not a number n which added to its sum of digits gives 125222550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113602 + ... + 114698.

It is an arithmetic number, because the mean of its divisors is an integer number (6484239).

Almost surely, 2^125222550 is an apocalyptic number.

125222550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125222550 is an abundant number, since it is smaller than the sum of its proper divisors (186020922).

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

125222550 is a wasteful number, since it uses less digits than its factorization.

125222550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1868 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 125222550 is about 11190.2882000420. The cubic root of 125222550 is about 500.2965574060.

The spelling of 125222550 in words is "one hundred twenty-five million, two hundred twenty-two thousand, five hundred fifty".