125550040 has 64 divisors (see below), whose sum is σ = 352200960. Its totient is φ = 39131520.

The previous prime is 125550037. The next prime is 125550071. The reversal of 125550040 is 40055521.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 125549993 and 125550020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17302 + ... + 23461.

It is an arithmetic number, because the mean of its divisors is an integer number (5503140).

Almost surely, 2^125550040 is an apocalyptic number.

125550040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125550040 is an abundant number, since it is smaller than the sum of its proper divisors (226650920).

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

125550040 is a wasteful number, since it uses less digits than its factorization.

125550040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40792 (or 40788 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 125550040 is about 11204.9114231216. The cubic root of 125550040 is about 500.7323135767.

The spelling of 125550040 in words is "one hundred twenty-five million, five hundred fifty thousand, forty".