625005621002142 has 12 divisors (see below), whose sum is σ = 1354178845504680. Its totient is φ = 208335207000708.

The previous prime is 625005621002123. The next prime is 625005621002179. The reversal of 625005621002142 is 241200126500526.

625005621002142 is a `hidden beast` number, since 6 + 2 + 5 + 0 + 0 + 5 + 621 + 0 + 0 + 21 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 625005621002097 and 625005621002106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17361267250042 + ... + 17361267250077.

It is an arithmetic number, because the mean of its divisors is an integer number (112848237125390).

Almost surely, 2^{625005621002142} is an apocalyptic number.

625005621002142 is an abundant number, since it is smaller than the sum of its proper divisors (729173224502538).

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

625005621002142 is a wasteful number, since it uses less digits than its factorization.

625005621002142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34722534500127 (or 34722534500124 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 625005621002142 its reverse (241200126500526), we get a palindrome (866205747502668).

The spelling of 625005621002142 in words is "six hundred twenty-five trillion, five billion, six hundred twenty-one million, two thousand, one hundred forty-two".