625131340 has 24 divisors (see below), whose sum is σ = 1313298000. Its totient is φ = 249953088.

The previous prime is 625131323. The next prime is 625131347. The reversal of 625131340 is 43131526.

625131340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (625131347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65514 + ... + 74446.

It is an arithmetic number, because the mean of its divisors is an integer number (54720750).

Almost surely, 2^625131340 is an apocalyptic number.

It is an amenable number.

625131340 is an abundant number, since it is smaller than the sum of its proper divisors (688166660).

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

625131340 is a wasteful number, since it uses less digits than its factorization.

625131340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12441 (or 12439 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 625131340 is about 25002.6266620129. The cubic root of 625131340 is about 855.0478593412.

Adding to 625131340 its reverse (43131526), we get a palindrome (668262866).

The spelling of 625131340 in words is "six hundred twenty-five million, one hundred thirty-one thousand, three hundred forty".