1253563556832 has 36 divisors (see below), whose sum is σ = 3564821365560. Its totient is φ = 417854518848.

The previous prime is 1253563556831. The next prime is 1253563556837. The reversal of 1253563556832 is 2386553653521.

1253563556832 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 5 + 6 + 3 + 556 + 83 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253563556831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2176325332 + ... + 2176325907.

It is an arithmetic number, because the mean of its divisors is an integer number (99022815710).

Almost surely, 2^{1253563556832} is an apocalyptic number.

1253563556832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1253563556832 is an abundant number, since it is smaller than the sum of its proper divisors (2311257808728).

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

1253563556832 is a wasteful number, since it uses less digits than its factorization.

1253563556832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352651255 (or 4352651244 counting only the distinct ones).

The product of its digits is 19440000, while the sum is 54.

The spelling of 1253563556832 in words is "one trillion, two hundred fifty-three billion, five hundred sixty-three million, five hundred fifty-six thousand, eight hundred thirty-two".