61125650 has 12 divisors (see below), whose sum is σ = 113693802. Its totient is φ = 24450240.

The previous prime is 61125637. The next prime is 61125703. The reversal of 61125650 is 5652116.

It can be written as a sum of positive squares in 3 ways, for example, as 39400729 + 21724921 = 6277^2 + 4661^2 .

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 5 ways as a sum of consecutive naturals, for example, 611207 + ... + 611306.

Almost surely, 2^61125650 is an apocalyptic number.

61125650 is a deficient number, since it is larger than the sum of its proper divisors (52568152).

61125650 is a wasteful number, since it uses less digits than its factorization.

61125650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222525 (or 1222520 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 61125650 is about 7818.2894548616. The cubic root of 61125650 is about 393.9198175706.

Adding to 61125650 its reverse (5652116), we get a palindrome (66777766).

The spelling of 61125650 in words is "sixty-one million, one hundred twenty-five thousand, six hundred fifty".