25315222611 has 8 divisors (see below), whose sum is σ = 38575577344. Its totient is φ = 14465841480.

The previous prime is 25315222531. The next prime is 25315222643. The reversal of 25315222611 is 11622251352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25315222611 - 2¹⁴ = 25315206227 is a prime.

It is a super-3 number, since 3×25315222611³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25315222661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602743375 + ... + 602743416.

It is an arithmetic number, because the mean of its divisors is an integer number (4821947168).

Almost surely, 2^25315222611 is an apocalyptic number.

25315222611 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25315222611 is a deficient number, since it is larger than the sum of its proper divisors (13260354733).

25315222611 is a wasteful number, since it uses less digits than its factorization.

25315222611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205486801.

The product of its digits is 7200, while the sum is 30.

Adding to 25315222611 its reverse (11622251352), we get a palindrome (36937473963).

The spelling of 25315222611 in words is "twenty-five billion, three hundred fifteen million, two hundred twenty-two thousand, six hundred eleven".