625540022 has 4 divisors (see below), whose sum is σ = 938310036. Its totient is φ = 312770010.

The previous prime is 625539989. The next prime is 625540031. The reversal of 625540022 is 220045526.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220045526 = 2 ⋅110022763.

It is a junction number, because it is equal to n+sod(n) for n = 625539973 and 625540000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156385004 + ... + 156385007.

It is an arithmetic number, because the mean of its divisors is an integer number (234577509).

Almost surely, 2^625540022 is an apocalyptic number.

625540022 is a deficient number, since it is larger than the sum of its proper divisors (312770014).

625540022 is a wasteful number, since it uses less digits than its factorization.

625540022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312770013.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 625540022 is about 25010.7981080173. The cubic root of 625540022 is about 855.2341490187.

Adding to 625540022 its reverse (220045526), we get a palindrome (845585548).

The spelling of 625540022 in words is "six hundred twenty-five million, five hundred forty thousand, twenty-two".