26250129252 has 18 divisors (see below), whose sum is σ = 66354493478. Its totient is φ = 8750043072.

The previous prime is 26250129251. The next prime is 26250129263. The reversal of 26250129252 is 25292105262.

It is a happy number.

26250129252 is a `hidden beast` number, since 2 + 62 + 501 + 2 + 92 + 5 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24484112676 + 1766016576 = 156474^2 + 42024^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 729170257 = 26250129252 / (2 + 6 + 2 + 5 + 0 + 1 + 2 + 9 + 2 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (26250129251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364585093 + ... + 364585164.

Almost surely, 2^26250129252 is an apocalyptic number.

It is an amenable number.

26250129252 is an abundant number, since it is smaller than the sum of its proper divisors (40104364226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26250129252 is a wasteful number, since it uses less digits than its factorization.

26250129252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729170267 (or 729170262 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 26250129252 in words is "twenty-six billion, two hundred fifty million, one hundred twenty-nine thousand, two hundred fifty-two".