25001151067840 has 56 divisors (see below), whose sum is σ = 59624331378480. Its totient is φ = 9985285137408.

The previous prime is 25001151067831. The next prime is 25001151067847. The reversal of 25001151067840 is 4876015110052.

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

It is a junction number, because it is equal to n+sod(n) for n = 25001151067793 and 25001151067802.

It is not an unprimeable number, because it can be changed into a prime (25001151067847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59067267 + ... + 59489026.

Almost surely, 2^{25001151067840} is an apocalyptic number.

25001151067840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25001151067840 is an abundant number, since it is smaller than the sum of its proper divisors (34623180310640).

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

25001151067840 is a wasteful number, since it uses less digits than its factorization.

25001151067840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118556969 (or 118556959 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

Adding to 25001151067840 its reverse (4876015110052), we get a palindrome (29877166177892).

The spelling of 25001151067840 in words is "twenty-five trillion, one billion, one hundred fifty-one million, sixty-seven thousand, eight hundred forty".