25530027755 has 4 divisors (see below), whose sum is σ = 30636033312. Its totient is φ = 20424022200.

The previous prime is 25530027727. The next prime is 25530027781. The reversal of 25530027755 is 55772003552.

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

It is not a de Polignac number, because 25530027755 - 2¹⁶ = 25529962219 is a prime.

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, 2553002771 + ... + 2553002780.

It is an arithmetic number, because the mean of its divisors is an integer number (7659008328).

Almost surely, 2^25530027755 is an apocalyptic number.

25530027755 is a deficient number, since it is larger than the sum of its proper divisors (5106005557).

25530027755 is an equidigital number, since it uses as much as digits as its factorization.

25530027755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106005556.

The product of its (nonzero) digits is 367500, while the sum is 41.

The spelling of 25530027755 in words is "twenty-five billion, five hundred thirty million, twenty-seven thousand, seven hundred fifty-five".