61442925 has 12 divisors (see below), whose sum is σ = 101585760. Its totient is φ = 32769520.

The previous prime is 61442923. The next prime is 61442933. The reversal of 61442925 is 52924416.

It is not a de Polignac number, because 61442925 - 2¹ = 61442923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61442923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409545 + ... + 409694.

It is an arithmetic number, because the mean of its divisors is an integer number (8465480).

Almost surely, 2^61442925 is an apocalyptic number.

It is an amenable number.

61442925 is a deficient number, since it is larger than the sum of its proper divisors (40142835).

61442925 is a wasteful number, since it uses less digits than its factorization.

61442925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819252 (or 819247 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 61442925 is about 7838.5537569120. The cubic root of 61442925 is about 394.6001936601.

The spelling of 61442925 in words is "sixty-one million, four hundred forty-two thousand, nine hundred twenty-five".