125549500 has 24 divisors (see below), whose sum is σ = 274201200. Its totient is φ = 50219600.

The previous prime is 125549477. The next prime is 125549507. The reversal of 125549500 is 5945521.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125549507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125050 + ... + 126049.

It is an arithmetic number, because the mean of its divisors is an integer number (11425050).

Almost surely, 2^125549500 is an apocalyptic number.

125549500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125549500 is an abundant number, since it is smaller than the sum of its proper divisors (148651700).

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

125549500 is a wasteful number, since it uses less digits than its factorization.

125549500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251118 (or 251106 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 125549500 is about 11204.8873265196. The cubic root of 125549500 is about 500.7315956801.

The spelling of 125549500 in words is "one hundred twenty-five million, five hundred forty-nine thousand, five hundred".