25153440541 has 4 divisors (see below), whose sum is σ = 25157647872. Its totient is φ = 25149233212.

The previous prime is 25153440523. The next prime is 25153440563. The reversal of 25153440541 is 14504435152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25153440541 - 2¹⁷ = 25153309469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25153440497 and 25153440506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25153440241) 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, 2094685 + ... + 2106658.

It is an arithmetic number, because the mean of its divisors is an integer number (6289411968).

Almost surely, 2^25153440541 is an apocalyptic number.

It is an amenable number.

25153440541 is a deficient number, since it is larger than the sum of its proper divisors (4207331).

25153440541 is an equidigital number, since it uses as much as digits as its factorization.

25153440541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207330.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 25153440541 its reverse (14504435152), we get a palindrome (39657875693).

The spelling of 25153440541 in words is "twenty-five billion, one hundred fifty-three million, four hundred forty thousand, five hundred forty-one".