2520855004399 has 4 divisors (see below), whose sum is σ = 2522037951160. Its totient is φ = 2519672057640.

The previous prime is 2520855004387. The next prime is 2520855004429. The reversal of 2520855004399 is 9934005580252.

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 2520855004399 - 2¹³ = 2520854996207 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 (2520855004379) 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, 591470184 + ... + 591474445.

It is an arithmetic number, because the mean of its divisors is an integer number (630509487790).

Almost surely, 2^{2520855004399} is an apocalyptic number.

2520855004399 is a deficient number, since it is larger than the sum of its proper divisors (1182946761).

2520855004399 is a wasteful number, since it uses less digits than its factorization.

2520855004399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182946760.

The product of its (nonzero) digits is 3888000, while the sum is 52.

The spelling of 2520855004399 in words is "two trillion, five hundred twenty billion, eight hundred fifty-five million, four thousand, three hundred ninety-nine".