25434714513 has 32 divisors (see below), whose sum is σ = 37144344832. Its totient is φ = 15385593600.

The previous prime is 25434714511. The next prime is 25434714521. The reversal of 25434714513 is 31541743452.

It is not a de Polignac number, because 25434714513 - 2¹ = 25434714511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25434714511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5566956 + ... + 5571522.

It is an arithmetic number, because the mean of its divisors is an integer number (1160760776).

Almost surely, 2^25434714513 is an apocalyptic number.

It is an amenable number.

25434714513 is a deficient number, since it is larger than the sum of its proper divisors (11709630319).

25434714513 is a wasteful number, since it uses less digits than its factorization.

25434714513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6985.

The product of its digits is 201600, while the sum is 39.

It can be divided in two parts, 2543 and 4714513, that added together give a triangular number (4717056 = T₃₀₇₁).

The spelling of 25434714513 in words is "twenty-five billion, four hundred thirty-four million, seven hundred fourteen thousand, five hundred thirteen".