25542105031020 has 96 divisors (see below), whose sum is σ = 73215390467520. Its totient is φ = 6651409305600.

The previous prime is 25542105031013. The next prime is 25542105031033. The reversal of 25542105031020 is 2013050124552.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28426585 + ... + 29311344.

It is an arithmetic number, because the mean of its divisors is an integer number (762660317370).

Almost surely, 2^{25542105031020} is an apocalyptic number.

25542105031020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25542105031020 is an abundant number, since it is smaller than the sum of its proper divisors (47673285436500).

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

25542105031020 is a wasteful number, since it uses less digits than its factorization.

25542105031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57738115 (or 57738113 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 25542105031020 its reverse (2013050124552), we get a palindrome (27555155155572).

The spelling of 25542105031020 in words is "twenty-five trillion, five hundred forty-two billion, one hundred five million, thirty-one thousand, twenty".