625143551442 has 32 divisors (see below), whose sum is σ = 1253019348864. Its totient is φ = 207926208000.

The previous prime is 625143551429. The next prime is 625143551443. The reversal of 625143551442 is 244155341526.

625143551442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 625143551394 and 625143551403.

It is not an unprimeable number, because it can be changed into a prime (625143551443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6376192 + ... + 6473492.

It is an arithmetic number, because the mean of its divisors is an integer number (39156854652).

Almost surely, 2^625143551442 is an apocalyptic number.

625143551442 is an abundant number, since it is smaller than the sum of its proper divisors (627875797422).

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

625143551442 is a wasteful number, since it uses less digits than its factorization.

625143551442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99634.

The product of its digits is 576000, while the sum is 42.

Adding to 625143551442 its reverse (244155341526), we get a palindrome (869298892968).

The spelling of 625143551442 in words is "six hundred twenty-five billion, one hundred forty-three million, five hundred fifty-one thousand, four hundred forty-two".