61477925 has 12 divisors (see below), whose sum is σ = 76413636. Its totient is φ = 49065600.

The previous prime is 61477891. The next prime is 61477931. The reversal of 61477925 is 52977416.

It can be written as a sum of positive squares in 6 ways, for example, as 43681 + 61434244 = 209^2 + 7838^2 .

It is not a de Polignac number, because 61477925 - 2⁶ = 61477861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 8735 + ... + 14115.

It is an arithmetic number, because the mean of its divisors is an integer number (6367803).

Almost surely, 2^61477925 is an apocalyptic number.

It is an amenable number.

61477925 is a deficient number, since it is larger than the sum of its proper divisors (14935711).

61477925 is a wasteful number, since it uses less digits than its factorization.

61477925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848 (or 5843 counting only the distinct ones).

The product of its digits is 105840, while the sum is 41.

The square root of 61477925 is about 7840.7859937636. The cubic root of 61477925 is about 394.6751053780.

The spelling of 61477925 in words is "sixty-one million, four hundred seventy-seven thousand, nine hundred twenty-five".