25042453313551 has 4 divisors (see below), whose sum is σ = 25042463327104. Its totient is φ = 25042443300000.

The previous prime is 25042453313543. The next prime is 25042453313593. The reversal of 25042453313551 is 15531335424052.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25042453313551 - 2³ = 25042453313543 is a prime.

It is a super-2 number, since 2×25042453313551² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25042453313498 and 25042453313507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25042454313551) 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, 2264551 + ... + 7430551.

It is an arithmetic number, because the mean of its divisors is an integer number (6260615831776).

Almost surely, 2^{25042453313551} is an apocalyptic number.

25042453313551 is a deficient number, since it is larger than the sum of its proper divisors (10013553).

25042453313551 is an equidigital number, since it uses as much as digits as its factorization.

25042453313551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10013552.

The product of its (nonzero) digits is 1080000, while the sum is 43.

The spelling of 25042453313551 in words is "twenty-five trillion, forty-two billion, four hundred fifty-three million, three hundred thirteen thousand, five hundred fifty-one".