625425422 has 4 divisors (see below), whose sum is σ = 938138136. Its totient is φ = 312712710.

The previous prime is 625425419. The next prime is 625425457. The reversal of 625425422 is 224524526.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 224524526 = 2 ⋅112262263.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156356354 + ... + 156356357.

It is an arithmetic number, because the mean of its divisors is an integer number (234534534).

Almost surely, 2^625425422 is an apocalyptic number.

625425422 is a deficient number, since it is larger than the sum of its proper divisors (312712714).

625425422 is a wasteful number, since it uses less digits than its factorization.

625425422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312712713.

The product of its digits is 38400, while the sum is 32.

The square root of 625425422 is about 25008.5069926215. The cubic root of 625425422 is about 855.1819190436.

Adding to 625425422 its reverse (224524526), we get a palindrome (849949948).

The spelling of 625425422 in words is "six hundred twenty-five million, four hundred twenty-five thousand, four hundred twenty-two".