25042211311 has 4 divisors (see below), whose sum is σ = 26968535272. Its totient is φ = 23115887352.

The previous prime is 25042211269. The next prime is 25042211323. The reversal of 25042211311 is 11311224052.

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 25042211311 - 2¹³ = 25042203119 is a prime.

It is a super-2 number, since 2×25042211311² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25042211911) 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, 963161961 + ... + 963161986.

It is an arithmetic number, because the mean of its divisors is an integer number (6742133818).

Almost surely, 2^25042211311 is an apocalyptic number.

25042211311 is a deficient number, since it is larger than the sum of its proper divisors (1926323961).

25042211311 is a wasteful number, since it uses less digits than its factorization.

25042211311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926323960.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 25042211311 its reverse (11311224052), we get a palindrome (36353435363).

The spelling of 25042211311 in words is "twenty-five billion, forty-two million, two hundred eleven thousand, three hundred eleven".