25475611657452 has 96 divisors (see below), whose sum is σ = 66605270457600. Its totient is φ = 7510601099520.

The previous prime is 25475611657403. The next prime is 25475611657453.

25475611657452 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (25475611657453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59121043 + ... + 59550389.

It is an arithmetic number, because the mean of its divisors is an integer number (693804900600).

Almost surely, 2^{25475611657452} is an apocalyptic number.

25475611657452 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 25475611657452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33302635228800).

25475611657452 is an abundant number, since it is smaller than the sum of its proper divisors (41129658800148).

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

25475611657452 is a wasteful number, since it uses less digits than its factorization.

25475611657452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441551 (or 441549 counting only the distinct ones).

The product of its digits is 70560000, while the sum is 60.

The spelling of 25475611657452 in words is "twenty-five trillion, four hundred seventy-five billion, six hundred eleven million, six hundred fifty-seven thousand, four hundred fifty-two".