61972250 has 16 divisors (see below), whose sum is σ = 116012520. Its totient is φ = 24788800.

The previous prime is 61972249. The next prime is 61972271. The reversal of 61972250 is 5227916.

It can be written as a sum of positive squares in 4 ways, for example, as 13126129 + 48846121 = 3623^2 + 6989^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123695 + ... + 124194.

Almost surely, 2^61972250 is an apocalyptic number.

61972250 is a deficient number, since it is larger than the sum of its proper divisors (54040270).

61972250 is a wasteful number, since it uses less digits than its factorization.

61972250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247906 (or 247896 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 61972250 is about 7872.2455500321. The cubic root of 61972250 is about 395.7301029668.

The spelling of 61972250 in words is "sixty-one million, nine hundred seventy-two thousand, two hundred fifty".