25425252452 has 6 divisors (see below), whose sum is σ = 44494191798. Its totient is φ = 12712626224.

The previous prime is 25425252451. The next prime is 25425252533.

25425252452 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 19730135296 + 5695117156 = 140464^2 + 75466^2 .

It is not an unprimeable number, because it can be changed into a prime (25425252451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3178156553 + ... + 3178156560.

It is an arithmetic number, because the mean of its divisors is an integer number (7415698633).

Almost surely, 2^25425252452 is an apocalyptic number.

It is an amenable number.

25425252452 is a deficient number, since it is larger than the sum of its proper divisors (19068939346).

25425252452 is a wasteful number, since it uses less digits than its factorization.

25425252452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6356313117 (or 6356313115 counting only the distinct ones).

The product of its digits is 320000, while the sum is 38.

The spelling of 25425252452 in words is "twenty-five billion, four hundred twenty-five million, two hundred fifty-two thousand, four hundred fifty-two".