25129472705290 has 8 divisors (see below), whose sum is σ = 45233050869540. Its totient is φ = 10051789082112.

The previous prime is 25129472705237. The next prime is 25129472705299. The reversal of 25129472705290 is 9250727492152.

It can be written as a sum of positive squares in 2 ways, for example, as 23655217777569 + 1474254927721 = 4863663^2 + 1214189^2 .

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

It is a super-2 number, since 2×25129472705290² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25129472705299) 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, 1256473635255 + ... + 1256473635274.

Almost surely, 2^{25129472705290} is an apocalyptic number.

25129472705290 is a deficient number, since it is larger than the sum of its proper divisors (20103578164250).

25129472705290 is a wasteful number, since it uses less digits than its factorization.

25129472705290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512947270536.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 25129472705290 in words is "twenty-five trillion, one hundred twenty-nine billion, four hundred seventy-two million, seven hundred five thousand, two hundred ninety".