25425455452452 has 144 divisors (see below), whose sum is σ = 74953609382400. Its totient is φ = 7439004619200.

The previous prime is 25425455452451. The next prime is 25425455452469.

It is a happy number.

25425455452452 is a `hidden beast` number, since 2 + 5 + 4 + 2 + 5 + 45 + 545 + 2 + 4 + 52 = 666.

25425455452452 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×25425455452452² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (25425455452451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33166324 + ... + 33924267.

Almost surely, 2^{25425455452452} is an apocalyptic number.

25425455452452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25425455452452 is an abundant number, since it is smaller than the sum of its proper divisors (49528153929948).

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

25425455452452 is a wasteful number, since it uses less digits than its factorization.

25425455452452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67090655 (or 67090636 counting only the distinct ones).

The product of its digits is 64000000, while the sum is 54.

It can be divided in two parts, 2542545 and 5452452, that added together give a palindrome (7994997).

The spelling of 25425455452452 in words is "twenty-five trillion, four hundred twenty-five billion, four hundred fifty-five million, four hundred fifty-two thousand, four hundred fifty-two".