2545515 has 24 divisors (see below), whose sum is σ = 5043168. Its totient is φ = 1163520.

The previous prime is 2545513. The next prime is 2545519. The reversal of 2545515 is 5155452.

It is not a de Polignac number, because 2545515 - 2¹ = 2545513 is a prime.

2545515 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2545513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3726 + ... + 4355.

It is an arithmetic number, because the mean of its divisors is an integer number (210132).

2^2545515 is an apocalyptic number.

2545515 is a deficient number, since it is larger than the sum of its proper divisors (2497653).

2545515 is a wasteful number, since it uses less digits than its factorization.

2545515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8099 (or 8096 counting only the distinct ones).

The product of its digits is 5000, while the sum is 27.

The square root of 2545515 is about 1595.4670162683. The cubic root of 2545515 is about 136.5395771403.

The spelling of 2545515 in words is "two million, five hundred forty-five thousand, five hundred fifteen".