625031434242 has 48 divisors (see below), whose sum is σ = 1404606515832. Its totient is φ = 200705817600.

The previous prime is 625031434231. The next prime is 625031434243. The reversal of 625031434242 is 242434130526.

625031434242 is a `hidden beast` number, since 6 + 2 + 503 + 143 + 4 + 2 + 4 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 523844460441 + 101186973801 = 723771^2 + 318099^2 .

It is a super-2 number, since 2×625031434242² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 625031434197 and 625031434206.

It is not an unprimeable number, because it can be changed into a prime (625031434243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4578703 + ... + 4713234.

Almost surely, 2^625031434242 is an apocalyptic number.

625031434242 is an abundant number, since it is smaller than the sum of its proper divisors (779575081590).

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

625031434242 is a wasteful number, since it uses less digits than its factorization.

625031434242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9292083 (or 9292080 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 625031434242 its reverse (242434130526), we get a palindrome (867465564768).

The spelling of 625031434242 in words is "six hundred twenty-five billion, thirty-one million, four hundred thirty-four thousand, two hundred forty-two".