61361425 has 12 divisors (see below), whose sum is σ = 77337436. Its totient is φ = 48283200.

The previous prime is 61361423. The next prime is 61361437. The reversal of 61361425 is 52416316.

It can be written as a sum of positive squares in 6 ways, for example, as 5650129 + 55711296 = 2377^2 + 7464^2 .

It is not a de Polignac number, because 61361425 - 2¹ = 61361423 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61361393 and 61361402.

It is not an unprimeable number, because it can be changed into a prime (61361423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18594 + ... + 21643.

Almost surely, 2^61361425 is an apocalyptic number.

It is an amenable number.

61361425 is a deficient number, since it is larger than the sum of its proper divisors (15976011).

61361425 is a wasteful number, since it uses less digits than its factorization.

61361425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40308 (or 40303 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 61361425 is about 7833.3533687687. The cubic root of 61361425 is about 394.4256460584.

The spelling of 61361425 in words is "sixty-one million, three hundred sixty-one thousand, four hundred twenty-five".