25451053525355 has 4 divisors (see below), whose sum is σ = 30541264230432. Its totient is φ = 20360842820280.

The previous prime is 25451053525343. The next prime is 25451053525477. The reversal of 25451053525355 is 55352535015452.

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

It is not a de Polignac number, because 25451053525355 - 2¹² = 25451053521259 is a prime.

It is a super-2 number, since 2×25451053525355² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545105352531 + ... + 2545105352540.

It is an arithmetic number, because the mean of its divisors is an integer number (7635316057608).

Almost surely, 2^{25451053525355} is an apocalyptic number.

25451053525355 is a deficient number, since it is larger than the sum of its proper divisors (5090210705077).

25451053525355 is an equidigital number, since it uses as much as digits as its factorization.

25451053525355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090210705076.

The product of its (nonzero) digits is 11250000, while the sum is 50.

The spelling of 25451053525355 in words is "twenty-five trillion, four hundred fifty-one billion, fifty-three million, five hundred twenty-five thousand, three hundred fifty-five".