126497550 has 48 divisors (see below), whose sum is σ = 314734320. Its totient is φ = 33623040.

The previous prime is 126497549. The next prime is 126497563. The reversal of 126497550 is 55794621.

It is a junction number, because it is equal to n+sod(n) for n = 126497499 and 126497508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51756 + ... + 54144.

It is an arithmetic number, because the mean of its divisors is an integer number (6556965).

Almost surely, 2^126497550 is an apocalyptic number.

126497550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126497550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157367160).

126497550 is an abundant number, since it is smaller than the sum of its proper divisors (188236770).

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

126497550 is a wasteful number, since it uses less digits than its factorization.

126497550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757 (or 2752 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 126497550 is about 11247.1129628896. The cubic root of 126497550 is about 501.9888120976.

The spelling of 126497550 in words is "one hundred twenty-six million, four hundred ninety-seven thousand, five hundred fifty".