61975250 has 16 divisors (see below), whose sum is σ = 116018136. Its totient is φ = 24790000.

The previous prime is 61975237. The next prime is 61975253. The reversal of 61975250 is 5257916.

It can be written as a sum of positive squares in 4 ways, for example, as 11095561 + 50879689 = 3331^2 + 7133^2 .

It is a super-2 number, since 2×61975250² = 7681863225125000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61975250.

It is not an unprimeable number, because it can be changed into a prime (61975253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123701 + ... + 124200.

Almost surely, 2^61975250 is an apocalyptic number.

61975250 is a deficient number, since it is larger than the sum of its proper divisors (54042886).

61975250 is a wasteful number, since it uses less digits than its factorization.

61975250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247918 (or 247908 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 61975250 is about 7872.4360905631. The cubic root of 61975250 is about 395.7364884654.

The spelling of 61975250 in words is "sixty-one million, nine hundred seventy-five thousand, two hundred fifty".