25042502443 has 16 divisors (see below), whose sum is σ = 31348486080. Its totient is φ = 19505719296.

The previous prime is 25042502413. The next prime is 25042502449. The reversal of 25042502443 is 34420524052.

It is not a de Polignac number, because 25042502443 - 2¹³ = 25042494251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25042502449) 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 15 ways as a sum of consecutive naturals, for example, 3624846 + ... + 3631747.

It is an arithmetic number, because the mean of its divisors is an integer number (1959280380).

Almost surely, 2^25042502443 is an apocalyptic number.

25042502443 is a deficient number, since it is larger than the sum of its proper divisors (6305983637).

25042502443 is a wasteful number, since it uses less digits than its factorization.

25042502443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7256646.

The product of its (nonzero) digits is 38400, while the sum is 31.

The spelling of 25042502443 in words is "twenty-five billion, forty-two million, five hundred two thousand, four hundred forty-three".