625142240 has 48 divisors (see below), whose sum is σ = 1479008160. Its totient is φ = 249699840.

The previous prime is 625142239. The next prime is 625142339. The reversal of 625142240 is 42241526.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128981 + ... + 133739.

It is an arithmetic number, because the mean of its divisors is an integer number (30812670).

Almost surely, 2^625142240 is an apocalyptic number.

It is an amenable number.

625142240 is an abundant number, since it is smaller than the sum of its proper divisors (853865920).

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

625142240 is a wasteful number, since it uses less digits than its factorization.

625142240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5595 (or 5587 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 625142240 is about 25002.8446381607. The cubic root of 625142240 is about 855.0528289462.

Adding to 625142240 its reverse (42241526), we get a palindrome (667383766).

The spelling of 625142240 in words is "six hundred twenty-five million, one hundred forty-two thousand, two hundred forty".