1252543554 has 32 divisors (see below), whose sum is σ = 2787061440. Its totient is φ = 416969856.

The previous prime is 1252543543. The next prime is 1252543571. The reversal of 1252543554 is 4553452521.

1252543554 is a `hidden beast` number, since 1 + 2 + 52 + 54 + 3 + 554 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27762 + ... + 57234.

It is an arithmetic number, because the mean of its divisors is an integer number (87095670).

Almost surely, 2^1252543554 is an apocalyptic number.

1252543554 is an abundant number, since it is smaller than the sum of its proper divisors (1534517886).

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

1252543554 is a wasteful number, since it uses less digits than its factorization.

1252543554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30271 (or 30265 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 1252543554 is about 35391.2920645743. The cubic root of 1252543554 is about 1077.9475061150.

The spelling of 1252543554 in words is "one billion, two hundred fifty-two million, five hundred forty-three thousand, five hundred fifty-four".