625620242 has 8 divisors (see below), whose sum is σ = 1010617356. Its totient is φ = 288747792.

The previous prime is 625620223. The next prime is 625620251. The reversal of 625620242 is 242026526.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 518518441 + 107101801 = 22771^2 + 10349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12031133 + ... + 12031184.

Almost surely, 2^625620242 is an apocalyptic number.

625620242 is a deficient number, since it is larger than the sum of its proper divisors (384997114).

625620242 is a wasteful number, since it uses less digits than its factorization.

625620242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24062332.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 625620242 is about 25012.4017639250. The cubic root of 625620242 is about 855.2707062058.

Adding to 625620242 its reverse (242026526), we get a palindrome (867646768).

The spelling of 625620242 in words is "six hundred twenty-five million, six hundred twenty thousand, two hundred forty-two".