1005253543254 has 16 divisors (see below), whose sum is σ = 2057263065792. Its totient is φ = 327291851208.

The previous prime is 1005253543253. The next prime is 1005253543303. The reversal of 1005253543254 is 4523453525001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005253543253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948165524 + ... + 1948166039.

It is an arithmetic number, because the mean of its divisors is an integer number (128578941612).

Almost surely, 2^{1005253543254} is an apocalyptic number.

1005253543254 is an abundant number, since it is smaller than the sum of its proper divisors (1052009522538).

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

1005253543254 is a wasteful number, since it uses less digits than its factorization.

1005253543254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896331611.

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 1005253543254 in words is "one trillion, five billion, two hundred fifty-three million, five hundred forty-three thousand, two hundred fifty-four".