25211506255 has 8 divisors (see below), whose sum is σ = 32581023552. Its totient is φ = 18617727648.

The previous prime is 25211506253. The next prime is 25211506259. The reversal of 25211506255 is 55260511252.

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

It is not a de Polignac number, because 25211506255 - 2¹ = 25211506253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25211506255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25211506253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193934599 + ... + 193934728.

It is an arithmetic number, because the mean of its divisors is an integer number (4072627944).

Almost surely, 2^25211506255 is an apocalyptic number.

25211506255 is a deficient number, since it is larger than the sum of its proper divisors (7369517297).

25211506255 is a wasteful number, since it uses less digits than its factorization.

25211506255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387869345.

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 25211506255 in words is "twenty-five billion, two hundred eleven million, five hundred six thousand, two hundred fifty-five".