25234510540403 has 4 divisors (see below), whose sum is σ = 25433207473920. Its totient is φ = 25035813606888.

The previous prime is 25234510540387. The next prime is 25234510540423. The reversal of 25234510540403 is 30404501543252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25234510540403 - 2⁴ = 25234510540387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25234510540423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99348466568 + ... + 99348466821.

It is an arithmetic number, because the mean of its divisors is an integer number (6358301868480).

Almost surely, 2^{25234510540403} is an apocalyptic number.

25234510540403 is a deficient number, since it is larger than the sum of its proper divisors (198696933517).

25234510540403 is a wasteful number, since it uses less digits than its factorization.

25234510540403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198696933516.

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 25234510540403 in words is "twenty-five trillion, two hundred thirty-four billion, five hundred ten million, five hundred forty thousand, four hundred three".