2513145305221 has 8 divisors (see below), whose sum is σ = 2518642473984. Its totient is φ = 2507648631840.

The previous prime is 2513145305213. The next prime is 2513145305257. The reversal of 2513145305221 is 1225035413152.

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

It is a cyclic number.

It is not a de Polignac number, because 2513145305221 - 2³ = 2513145305213 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 (2513145305921) 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, 11152956 + ... + 11376058.

It is an arithmetic number, because the mean of its divisors is an integer number (314830309248).

Almost surely, 2^{2513145305221} is an apocalyptic number.

It is an amenable number.

2513145305221 is a deficient number, since it is larger than the sum of its proper divisors (5497168763).

2513145305221 is a wasteful number, since it uses less digits than its factorization.

2513145305221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247691.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 2513145305221 in words is "two trillion, five hundred thirteen billion, one hundred forty-five million, three hundred five thousand, two hundred twenty-one".