61250069 has 4 divisors (see below), whose sum is σ = 61266060. Its totient is φ = 61234080.

The previous prime is 61250047. The next prime is 61250093. The reversal of 61250069 is 96005216.

61250069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 43059844 + 18190225 = 6562^2 + 4265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61250069 is a prime.

It is a super-2 number, since 2×61250069² = 7503141905009522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61250029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1547 + ... + 11175.

It is an arithmetic number, because the mean of its divisors is an integer number (15316515).

Almost surely, 2^61250069 is an apocalyptic number.

It is an amenable number.

61250069 is a deficient number, since it is larger than the sum of its proper divisors (15991).

61250069 is an equidigital number, since it uses as much as digits as its factorization.

61250069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15990.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 61250069 is about 7826.2423294963. The cubic root of 61250069 is about 394.1869061764.

The spelling of 61250069 in words is "sixty-one million, two hundred fifty thousand, sixty-nine".