2515139305545 has 64 divisors (see below), whose sum is σ = 4117180078080. Its totient is φ = 1310716108800.

The previous prime is 2515139305543. The next prime is 2515139305561. The reversal of 2515139305545 is 5455039315152.

It is not a de Polignac number, because 2515139305545 - 2¹ = 2515139305543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2515139305494 and 2515139305503.

It is not an unprimeable number, because it can be changed into a prime (2515139305541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 126754825 + ... + 126774665.

It is an arithmetic number, because the mean of its divisors is an integer number (64330938720).

Almost surely, 2^{2515139305545} is an apocalyptic number.

It is an amenable number.

2515139305545 is a deficient number, since it is larger than the sum of its proper divisors (1602040772535).

2515139305545 is a wasteful number, since it uses less digits than its factorization.

2515139305545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20766.

The product of its (nonzero) digits is 2025000, while the sum is 48.

The spelling of 2515139305545 in words is "two trillion, five hundred fifteen billion, one hundred thirty-nine million, three hundred five thousand, five hundred forty-five".