61231250 has 48 divisors (see below), whose sum is σ = 117133128. Its totient is φ = 24000000.

The previous prime is 61231237. The next prime is 61231253. The reversal of 61231250 is 5213216.

It can be written as a sum of positive squares in 12 ways, for example, as 13053769 + 48177481 = 3613^2 + 6941^2 .

It is not an unprimeable number, because it can be changed into a prime (61231253) 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 23 ways as a sum of consecutive naturals, for example, 606200 + ... + 606300.

Almost surely, 2^61231250 is an apocalyptic number.

61231250 is a deficient number, since it is larger than the sum of its proper divisors (55901878).

61231250 is an equidigital number, since it uses as much as digits as its factorization.

61231250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 61231250 is about 7825.0399360003. The cubic root of 61231250 is about 394.1465309116.

Adding to 61231250 its reverse (5213216), we get a palindrome (66444466).

The spelling of 61231250 in words is "sixty-one million, two hundred thirty-one thousand, two hundred fifty".