25442451154120 has 512 divisors, whose sum is σ = 81909482618880. Its totient is φ = 6852853370880.

The previous prime is 25442451154091. The next prime is 25442451154177. The reversal of 25442451154120 is 2145115424452.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 42989334 + ... + 43577146.

It is an arithmetic number, because the mean of its divisors is an integer number (159979458240).

Almost surely, 2^{25442451154120} is an apocalyptic number.

25442451154120 is a gapful number since it is divisible by the number (20) 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 25442451154120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40954741309440).

25442451154120 is an abundant number, since it is smaller than the sum of its proper divisors (56467031464760).

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

25442451154120 is a wasteful number, since it uses less digits than its factorization.

25442451154120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587925 (or 587921 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 40.

Adding to 25442451154120 its reverse (2145115424452), we get a palindrome (27587566578572).

The spelling of 25442451154120 in words is "twenty-five trillion, four hundred forty-two billion, four hundred fifty-one million, one hundred fifty-four thousand, one hundred twenty".