25457455475452 has 192 divisors, whose sum is σ = 60363660930048. Its totient is φ = 9147453638400.

The previous prime is 25457455475449. The next prime is 25457455475467.

It is a happy number.

25457455475452 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 563432302 + ... + 563477482.

It is an arithmetic number, because the mean of its divisors is an integer number (314394067344).

Almost surely, 2^{25457455475452} is an apocalyptic number.

25457455475452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25457455475452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30181830465024).

25457455475452 is an abundant number, since it is smaller than the sum of its proper divisors (34906205454596).

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

25457455475452 is a wasteful number, since it uses less digits than its factorization.

25457455475452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46401 (or 46377 counting only the distinct ones).

The product of its digits is 784000000, while the sum is 64.

The spelling of 25457455475452 in words is "twenty-five trillion, four hundred fifty-seven billion, four hundred fifty-five million, four hundred seventy-five thousand, four hundred fifty-two".