61249994 has 12 divisors (see below), whose sum is σ = 99486486. Its totient is φ = 28269072.

The previous prime is 61249949. The next prime is 61249999. The reversal of 61249994 is 49994216.

It can be written as a sum of positive squares in 3 ways, for example, as 11730625 + 49519369 = 3425^2 + 7037^2 .

It is not an unprimeable number, because it can be changed into a prime (61249999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90269 + ... + 90944.

Almost surely, 2^61249994 is an apocalyptic number.

61249994 is a deficient number, since it is larger than the sum of its proper divisors (38236492).

61249994 is a wasteful number, since it uses less digits than its factorization.

61249994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181241 (or 181228 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 61249994 is about 7826.2375379233. The cubic root of 61249994 is about 394.1867452839.

The spelling of 61249994 in words is "sixty-one million, two hundred forty-nine thousand, nine hundred ninety-four".