125550406 has 8 divisors (see below), whose sum is σ = 199403640. Its totient is φ = 59082528.

The previous prime is 125550401. The next prime is 125550427. The reversal of 125550406 is 604055521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125550401) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1846296 + ... + 1846363.

It is an arithmetic number, because the mean of its divisors is an integer number (24925455).

Almost surely, 2^125550406 is an apocalyptic number.

125550406 is a deficient number, since it is larger than the sum of its proper divisors (73853234).

125550406 is a wasteful number, since it uses less digits than its factorization.

125550406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692678.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 125550406 is about 11204.9277552334. The cubic root of 125550406 is about 500.7328001499.

The spelling of 125550406 in words is "one hundred twenty-five million, five hundred fifty thousand, four hundred six".