25252961420047 has 4 divisors (see below), whose sum is σ = 25629871292056. Its totient is φ = 24876051548040.

The previous prime is 25252961420023. The next prime is 25252961420101. The reversal of 25252961420047 is 74002416925252.

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 25252961420047 - 2⁷ = 25252961419919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25252961420147) 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, 188454935904 + ... + 188454936037.

It is an arithmetic number, because the mean of its divisors is an integer number (6407467823014).

Almost surely, 2^{25252961420047} is an apocalyptic number.

25252961420047 is a deficient number, since it is larger than the sum of its proper divisors (376909872009).

25252961420047 is an equidigital number, since it uses as much as digits as its factorization.

25252961420047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376909872008.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 25252961420047 in words is "twenty-five trillion, two hundred fifty-two billion, nine hundred sixty-one million, four hundred twenty thousand, forty-seven".