25512214021142 has 32 divisors (see below), whose sum is σ = 39008823708960. Its totient is φ = 12510328430080.

The previous prime is 25512214021139. The next prime is 25512214021169. The reversal of 25512214021142 is 24112041221552.

It is a junction number, because it is equal to n+sod(n) for n = 25512214021099 and 25512214021108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85683758 + ... + 85980990.

It is an arithmetic number, because the mean of its divisors is an integer number (1219025740905).

Almost surely, 2^{25512214021142} is an apocalyptic number.

25512214021142 is a deficient number, since it is larger than the sum of its proper divisors (13496609687818).

25512214021142 is a wasteful number, since it uses less digits than its factorization.

25512214021142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299008.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 25512214021142 its reverse (24112041221552), we get a palindrome (49624255242694).

The spelling of 25512214021142 in words is "twenty-five trillion, five hundred twelve billion, two hundred fourteen million, twenty-one thousand, one hundred forty-two".