25416548741 has 4 divisors (see below), whose sum is σ = 25421225484. Its totient is φ = 25411872000.

The previous prime is 25416548737. The next prime is 25416548749. The reversal of 25416548741 is 14784561452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14381046241 + 11035502500 = 119921^2 + 105050^2 .

It is a cyclic number.

It is not a de Polignac number, because 25416548741 - 2² = 25416548737 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 (25416548749) 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, 2330210 + ... + 2341091.

It is an arithmetic number, because the mean of its divisors is an integer number (6355306371).

Almost surely, 2^25416548741 is an apocalyptic number.

It is an amenable number.

25416548741 is a deficient number, since it is larger than the sum of its proper divisors (4676743).

25416548741 is an equidigital number, since it uses as much as digits as its factorization.

25416548741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4676742.

The product of its digits is 1075200, while the sum is 47.

The spelling of 25416548741 in words is "twenty-five billion, four hundred sixteen million, five hundred forty-eight thousand, seven hundred forty-one".