25212055333 has 4 divisors (see below), whose sum is σ = 25557426028. Its totient is φ = 24866684640.

The previous prime is 25212055313. The next prime is 25212055403. The reversal of 25212055333 is 33355021252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11060097889 + 14151957444 = 105167^2 + 118962^2 .

It is a cyclic number.

It is not a de Polignac number, because 25212055333 - 2¹³ = 25212047141 is a prime.

It is a super-2 number, since 2×25212055333² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25212055295 and 25212055304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25212055313) 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, 172685238 + ... + 172685383.

It is an arithmetic number, because the mean of its divisors is an integer number (6389356507).

Almost surely, 2^25212055333 is an apocalyptic number.

It is an amenable number.

25212055333 is a deficient number, since it is larger than the sum of its proper divisors (345370695).

25212055333 is an equidigital number, since it uses as much as digits as its factorization.

25212055333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345370694.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 25212055333 its reverse (33355021252), we get a palindrome (58567076585).

The spelling of 25212055333 in words is "twenty-five billion, two hundred twelve million, fifty-five thousand, three hundred thirty-three".