61273250 has 32 divisors (see below), whose sum is σ = 115605360. Its totient is φ = 24316800.

The previous prime is 61273249. The next prime is 61273283. The reversal of 61273250 is 5237216.

It can be written as a sum of positive squares in 8 ways, for example, as 13980121 + 47293129 = 3739^2 + 6877^2 .

It is a super-2 number, since 2×61273250² = 7508822331125000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33356 + ... + 35144.

Almost surely, 2^61273250 is an apocalyptic number.

61273250 is a deficient number, since it is larger than the sum of its proper divisors (54332110).

61273250 is a wasteful number, since it uses less digits than its factorization.

61273250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1933 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 61273250 is about 7827.7231683293. The cubic root of 61273250 is about 394.2366285375.

The spelling of 61273250 in words is "sixty-one million, two hundred seventy-three thousand, two hundred fifty".