1002251225543 has 4 divisors (see below), whose sum is σ = 1045827365808. Its totient is φ = 958675085280.

The previous prime is 1002251225533. The next prime is 1002251225579. The reversal of 1002251225543 is 3455221522001.

1002251225543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002251225543 - 2⁴ = 1002251225527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002251225533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21788070098 + ... + 21788070143.

It is an arithmetic number, because the mean of its divisors is an integer number (261456841452).

Almost surely, 2^{1002251225543} is an apocalyptic number.

1002251225543 is a deficient number, since it is larger than the sum of its proper divisors (43576140265).

1002251225543 is an equidigital number, since it uses as much as digits as its factorization.

1002251225543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43576140264.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 1002251225543 its reverse (3455221522001), we get a palindrome (4457472747544).

The spelling of 1002251225543 in words is "one trillion, two billion, two hundred fifty-one million, two hundred twenty-five thousand, five hundred forty-three".