2545324135221 has 8 divisors (see below), whose sum is σ = 3878589158464. Its totient is φ = 1454470934400.

The previous prime is 2545324135201. The next prime is 2545324135241. The reversal of 2545324135221 is 1225314235452.

It is an interprime number because it is at equal distance from previous prime (2545324135201) and next prime (2545324135241).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2545324135221 - 2¹⁸ = 2545323873077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2545324135221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545324135201) 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, 60602955580 + ... + 60602955621.

It is an arithmetic number, because the mean of its divisors is an integer number (484823644808).

Almost surely, 2^{2545324135221} is an apocalyptic number.

2545324135221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2545324135221 is a deficient number, since it is larger than the sum of its proper divisors (1333265023243).

2545324135221 is a wasteful number, since it uses less digits than its factorization.

2545324135221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121205911211.

The product of its digits is 288000, while the sum is 39.

The spelling of 2545324135221 in words is "two trillion, five hundred forty-five billion, three hundred twenty-four million, one hundred thirty-five thousand, two hundred twenty-one".