613125250 has 64 divisors (see below), whose sum is σ = 1250121600. Its totient is φ = 224280000.

The previous prime is 613125229. The next prime is 613125251. The reversal of 613125250 is 52521316.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (613125251) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 135525 + ... + 139975.

It is an arithmetic number, because the mean of its divisors is an integer number (19533150).

Almost surely, 2^613125250 is an apocalyptic number.

613125250 is an abundant number, since it is smaller than the sum of its proper divisors (636996350).

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

613125250 is a wasteful number, since it uses less digits than its factorization.

613125250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516 (or 4506 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 613125250 is about 24761.3660770160. The cubic root of 613125250 is about 849.5385038074.

Adding to 613125250 its reverse (52521316), we get a palindrome (665646566).

The spelling of 613125250 in words is "six hundred thirteen million, one hundred twenty-five thousand, two hundred fifty".