61909325 has 48 divisors (see below), whose sum is σ = 86851584. Its totient is φ = 43545600.

The previous prime is 61909321. The next prime is 61909343. The reversal of 61909325 is 52390916.

61909325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61909325 - 2² = 61909321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61909321) 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 47 ways as a sum of consecutive naturals, for example, 487412 + ... + 487538.

It is an arithmetic number, because the mean of its divisors is an integer number (1809408).

Almost surely, 2^61909325 is an apocalyptic number.

It is an amenable number.

61909325 is a deficient number, since it is larger than the sum of its proper divisors (24942259).

61909325 is a wasteful number, since it uses less digits than its factorization.

61909325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 61909325 is about 7868.2478989925. The cubic root of 61909325 is about 395.5961196138.

The spelling of 61909325 in words is "sixty-one million, nine hundred nine thousand, three hundred twenty-five".