25513540003 has 16 divisors (see below), whose sum is σ = 29382580224. Its totient is φ = 21700687680.

The previous prime is 25513540001. The next prime is 25513540033. The reversal of 25513540003 is 30004531552.

It is not a de Polignac number, because 25513540003 - 2¹ = 25513540001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25513540001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4630176 + ... + 4635682.

It is an arithmetic number, because the mean of its divisors is an integer number (1836411264).

Almost surely, 2^25513540003 is an apocalyptic number.

25513540003 is a deficient number, since it is larger than the sum of its proper divisors (3869040221).

25513540003 is a wasteful number, since it uses less digits than its factorization.

25513540003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10482.

The product of its (nonzero) digits is 9000, while the sum is 28.

It can be divided in two parts, 25513 and 540003, that added together give a triangular number (565516 = T₁₀₆₃).

The spelling of 25513540003 in words is "twenty-five billion, five hundred thirteen million, five hundred forty thousand, three".