126553554 has 12 divisors (see below), whose sum is σ = 274199406. Its totient is φ = 42184512.

The previous prime is 126553549. The next prime is 126553573. The reversal of 126553554 is 455355621.

126553554 is a `hidden beast` number, since 12 + 65 + 535 + 54 = 666.

It can be written as a sum of positive squares in only one way, i.e., 126225225 + 328329 = 11235^2 + 573^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3515359 + ... + 3515394.

Almost surely, 2^126553554 is an apocalyptic number.

126553554 is an abundant number, since it is smaller than the sum of its proper divisors (147645852).

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

126553554 is a wasteful number, since it uses less digits than its factorization.

126553554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7030761 (or 7030758 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 126553554 is about 11249.6023929737. The cubic root of 126553554 is about 502.0628826589.

The spelling of 126553554 in words is "one hundred twenty-six million, five hundred fifty-three thousand, five hundred fifty-four".