126553500 has 72 divisors (see below), whose sum is σ = 399248304. Its totient is φ = 33746400.

The previous prime is 126553489. The next prime is 126553513. The reversal of 126553500 is 5355621.

126553500 is a `hidden beast` number, since 1 + 2 + 655 + 3 + 5 + 0 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9562 + ... + 18561.

Almost surely, 2^126553500 is an apocalyptic number.

126553500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126553500 is an abundant number, since it is smaller than the sum of its proper divisors (272694804).

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

126553500 is a wasteful number, since it uses less digits than its factorization.

126553500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28148 (or 28133 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 126553500 is about 11249.5999928886. The cubic root of 126553500 is about 502.0628112493.

The spelling of 126553500 in words is "one hundred twenty-six million, five hundred fifty-three thousand, five hundred".