25402388320452 has 96 divisors (see below), whose sum is σ = 70323970195584. Its totient is φ = 7035211008000.

The previous prime is 25402388320423. The next prime is 25402388320453.

25402388320452 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (25402388320453) 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, 73110133 + ... + 73456764.

It is an arithmetic number, because the mean of its divisors is an integer number (732541356204).

Almost surely, 2^{25402388320452} is an apocalyptic number.

25402388320452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25402388320452 is an abundant number, since it is smaller than the sum of its proper divisors (44921581875132).

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

25402388320452 is a wasteful number, since it uses less digits than its factorization.

25402388320452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146567029 (or 146567027 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 48.

The spelling of 25402388320452 in words is "twenty-five trillion, four hundred two billion, three hundred eighty-eight million, three hundred twenty thousand, four hundred fifty-two".