25042105553 has 4 divisors (see below), whose sum is σ = 25466548080. Its totient is φ = 24617663028.

The previous prime is 25042105537. The next prime is 25042105559. The reversal of 25042105553 is 35550124052.

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 25042105553 - 2⁴ = 25042105537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25042105559) 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, 212221175 + ... + 212221292.

It is an arithmetic number, because the mean of its divisors is an integer number (6366637020).

Almost surely, 2^25042105553 is an apocalyptic number.

It is an amenable number.

25042105553 is a deficient number, since it is larger than the sum of its proper divisors (424442527).

25042105553 is an equidigital number, since it uses as much as digits as its factorization.

25042105553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424442526.

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 25042105553 in words is "twenty-five billion, forty-two million, one hundred five thousand, five hundred fifty-three".