612523250 has 64 divisors (see below), whose sum is σ = 1178686080. Its totient is φ = 238264000.

The previous prime is 612523237. The next prime is 612523259. The reversal of 612523250 is 52325216.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (612523259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1932092 + ... + 1932408.

It is an arithmetic number, because the mean of its divisors is an integer number (18416970).

Almost surely, 2^612523250 is an apocalyptic number.

612523250 is a deficient number, since it is larger than the sum of its proper divisors (566162830).

612523250 is a wasteful number, since it uses less digits than its factorization.

612523250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 612523250 is about 24749.2070580049. The cubic root of 612523250 is about 849.2603715925.

Adding to 612523250 its reverse (52325216), we get a palindrome (664848466).

The spelling of 612523250 in words is "six hundred twelve million, five hundred twenty-three thousand, two hundred fifty".