25212612762049 has 8 divisors (see below), whose sum is σ = 25313415365000. Its totient is φ = 25111939147776.

The previous prime is 25212612762031. The next prime is 25212612762067. The reversal of 25212612762049 is 94026721621252.

It is an interprime number because it is at equal distance from previous prime (25212612762031) and next prime (25212612762067).

It can be written as a sum of positive squares in 4 ways, for example, as 1200652722049 + 24011960040000 = 1095743^2 + 4900200^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25212612762049 - 2²⁵ = 25212579207617 is a prime.

It is a super-2 number, since 2×25212612762049² (a number of 28 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 = 25212612761993 and 25212612762011.

It is not an unprimeable number, because it can be changed into a prime (25212612762149) 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, 31855452 + ... + 32637325.

It is an arithmetic number, because the mean of its divisors is an integer number (3164176920625).

Almost surely, 2^{25212612762049} is an apocalyptic number.

It is an amenable number.

25212612762049 is a deficient number, since it is larger than the sum of its proper divisors (100802602951).

25212612762049 is a wasteful number, since it uses less digits than its factorization.

25212612762049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64494339.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 25212612762049 in words is "twenty-five trillion, two hundred twelve billion, six hundred twelve million, seven hundred sixty-two thousand, forty-nine".