2545617615 has 8 divisors (see below), whose sum is σ = 4072988208. Its totient is φ = 1357662720.

The previous prime is 2545617601. The next prime is 2545617629. The reversal of 2545617615 is 5167165452.

It is an interprime number because it is at equal distance from previous prime (2545617601) and next prime (2545617629).

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

It is not a de Polignac number, because 2545617615 - 2¹² = 2545613519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84853906 + ... + 84853935.

It is an arithmetic number, because the mean of its divisors is an integer number (509123526).

Almost surely, 2^2545617615 is an apocalyptic number.

2545617615 is a deficient number, since it is larger than the sum of its proper divisors (1527370593).

2545617615 is a wasteful number, since it uses less digits than its factorization.

2545617615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169707849.

The product of its digits is 252000, while the sum is 42.

The square root of 2545617615 is about 50454.1139551573. The cubic root of 2545617615 is about 1365.4141184703.

It can be divided in two parts, 25456 and 17615, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 2545617615 in words is "two billion, five hundred forty-five million, six hundred seventeen thousand, six hundred fifteen".