2545402015 has 16 divisors (see below), whose sum is σ = 3311532000. Its totient is φ = 1867059072.

The previous prime is 2545402003. The next prime is 2545402031. The reversal of 2545402015 is 5102045452.

It is a cyclic number.

It is not a de Polignac number, because 2545402015 - 2¹⁷ = 2545270943 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 15 ways as a sum of consecutive naturals, for example, 121725 + ... + 141094.

It is an arithmetic number, because the mean of its divisors is an integer number (206970750).

Almost surely, 2^2545402015 is an apocalyptic number.

2545402015 is a deficient number, since it is larger than the sum of its proper divisors (766129985).

2545402015 is a wasteful number, since it uses less digits than its factorization.

2545402015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262986.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 2545402015 is about 50451.9773150667. The cubic root of 2545402015 is about 1365.3755696596.

Adding to 2545402015 its reverse (5102045452), we get a palindrome (7647447467).

The spelling of 2545402015 in words is "two billion, five hundred forty-five million, four hundred two thousand, fifteen".