2515397641555 has 16 divisors (see below), whose sum is σ = 3117882866688. Its totient is φ = 1946132460000.

The previous prime is 2515397641543. The next prime is 2515397641597. The reversal of 2515397641555 is 5551467935152.

It is not a de Polignac number, because 2515397641555 - 2¹¹ = 2515397639507 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 2515397641555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5062621 + ... + 5537230.

It is an arithmetic number, because the mean of its divisors is an integer number (194867679168).

Almost surely, 2^{2515397641555} is an apocalyptic number.

2515397641555 is a deficient number, since it is larger than the sum of its proper divisors (602485225133).

2515397641555 is a wasteful number, since it uses less digits than its factorization.

2515397641555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10601418.

The product of its digits is 28350000, while the sum is 58.

The spelling of 2515397641555 in words is "two trillion, five hundred fifteen billion, three hundred ninety-seven million, six hundred forty-one thousand, five hundred fifty-five".