42774725 has 24 divisors (see below), whose sum is σ = 61627008. Its totient is φ = 28843200.

The previous prime is 42774713. The next prime is 42774727. The reversal of 42774725 is 52747724.

It is not a de Polignac number, because 42774725 - 2⁴ = 42774709 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 (42774727) 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 23 ways as a sum of consecutive naturals, for example, 8672 + ... + 12678.

It is an arithmetic number, because the mean of its divisors is an integer number (2567792).

Almost surely, 2^42774725 is an apocalyptic number.

It is an amenable number.

42774725 is a deficient number, since it is larger than the sum of its proper divisors (18852283).

42774725 is a wasteful number, since it uses less digits than its factorization.

42774725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085 (or 4080 counting only the distinct ones).

The product of its digits is 109760, while the sum is 38.

The square root of 42774725 is about 6540.2389100093. The cubic root of 42774725 is about 349.7269298631.

The spelling of 42774725 in words is "forty-two million, seven hundred seventy-four thousand, seven hundred twenty-five".