42049725 has 48 divisors (see below), whose sum is σ = 72376320. Its totient is φ = 21528000.

The previous prime is 42049703. The next prime is 42049747. The reversal of 42049725 is 52794024.

It is an interprime number because it is at equal distance from previous prime (42049703) and next prime (42049747).

It is not a de Polignac number, because 42049725 - 2⁶ = 42049661 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 278400 + ... + 278550.

It is an arithmetic number, because the mean of its divisors is an integer number (1507840).

Almost surely, 2^42049725 is an apocalyptic number.

It is an amenable number.

42049725 is a deficient number, since it is larger than the sum of its proper divisors (30326595).

42049725 is a wasteful number, since it uses less digits than its factorization.

42049725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 42049725 is about 6484.5759306218. The cubic root of 42049725 is about 347.7397892962.

The spelling of 42049725 in words is "forty-two million, forty-nine thousand, seven hundred twenty-five".