25330553011 has 4 divisors (see below), whose sum is σ = 25382143224. Its totient is φ = 25278962800.

The previous prime is 25330552979. The next prime is 25330553041. The reversal of 25330553011 is 11035503352.

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

It is a cyclic number.

It is not a de Polignac number, because 25330553011 - 2⁵ = 25330552979 is a prime.

It is a super-2 number, since 2×25330553011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25330553041) 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, 25794370 + ... + 25795351.

It is an arithmetic number, because the mean of its divisors is an integer number (6345535806).

Almost surely, 2^25330553011 is an apocalyptic number.

25330553011 is a deficient number, since it is larger than the sum of its proper divisors (51590213).

25330553011 is an equidigital number, since it uses as much as digits as its factorization.

25330553011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51590212.

The product of its (nonzero) digits is 6750, while the sum is 28.

The spelling of 25330553011 in words is "twenty-five billion, three hundred thirty million, five hundred fifty-three thousand, eleven".