61743925 has 6 divisors (see below), whose sum is σ = 76562498. Its totient is φ = 49395120.

The previous prime is 61743923. The next prime is 61743953. The reversal of 61743925 is 52934716.

It can be written as a sum of positive squares in 3 ways, for example, as 2792241 + 58951684 = 1671^2 + 7678^2 .

It is not a de Polignac number, because 61743925 - 2¹ = 61743923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61743923) 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, 1234854 + ... + 1234903.

Almost surely, 2^61743925 is an apocalyptic number.

It is an amenable number.

61743925 is a deficient number, since it is larger than the sum of its proper divisors (14818573).

61743925 is a wasteful number, since it uses less digits than its factorization.

61743925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469767 (or 2469762 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 61743925 is about 7857.7302702498. The cubic root of 61743925 is about 395.2435073866.

The spelling of 61743925 in words is "sixty-one million, seven hundred forty-three thousand, nine hundred twenty-five".