625513042 has 32 divisors (see below), whose sum is σ = 1174965120. Its totient is φ = 242628480.

The previous prime is 625513039. The next prime is 625513051. The reversal of 625513042 is 240315526.

It is a self number, because there is not a number n which added to its sum of digits gives 625513042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26398 + ... + 44134.

It is an arithmetic number, because the mean of its divisors is an integer number (36717660).

Almost surely, 2^625513042 is an apocalyptic number.

625513042 is a deficient number, since it is larger than the sum of its proper divisors (549452078).

625513042 is a wasteful number, since it uses less digits than its factorization.

625513042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17986.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 625513042 is about 25010.2587351671. The cubic root of 625513042 is about 855.2218532165.

Adding to 625513042 its reverse (240315526), we get a palindrome (865828568).

It can be divided in two parts, 62 and 5513042, that added together give a square (5513104 = 2348²).

The spelling of 625513042 in words is "six hundred twenty-five million, five hundred thirteen thousand, forty-two".