126805550 has 24 divisors (see below), whose sum is σ = 249734016. Its totient is φ = 47738240.

The previous prime is 126805543. The next prime is 126805561. The reversal of 126805550 is 55508621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73742 + ... + 75441.

It is an arithmetic number, because the mean of its divisors is an integer number (10405584).

Almost surely, 2^126805550 is an apocalyptic number.

126805550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126805550 is a deficient number, since it is larger than the sum of its proper divisors (122928466).

126805550 is a wasteful number, since it uses less digits than its factorization.

126805550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149212 (or 149207 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 126805550 is about 11260.7970410624. The cubic root of 126805550 is about 502.3959009793.

The spelling of 126805550 in words is "one hundred twenty-six million, eight hundred five thousand, five hundred fifty".