61294225 has 6 divisors (see below), whose sum is σ = 76004870. Its totient is φ = 49035360.

The previous prime is 61294151. The next prime is 61294267. The reversal of 61294225 is 52249216.

61294225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 16641 + 61277584 = 129^2 + 7828^2 .

It is not a de Polignac number, because 61294225 - 2¹⁵ = 61261457 is a prime.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1225860 + ... + 1225909.

Almost surely, 2^61294225 is an apocalyptic number.

It is an amenable number.

61294225 is a deficient number, since it is larger than the sum of its proper divisors (14710645).

61294225 is a wasteful number, since it uses less digits than its factorization.

61294225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451779 (or 2451774 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 61294225 is about 7829.0628430228. The cubic root of 61294225 is about 394.2816083066.

The spelling of 61294225 in words is "sixty-one million, two hundred ninety-four thousand, two hundred twenty-five".