42553750 has 40 divisors (see below), whose sum is σ = 81255240. Its totient is φ = 16704000.

The previous prime is 42553739. The next prime is 42553799. The reversal of 42553750 is 5735524.

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 19 ways as a sum of consecutive naturals, for example, 73462 + ... + 74038.

It is an arithmetic number, because the mean of its divisors is an integer number (2031381).

Almost surely, 2^42553750 is an apocalyptic number.

42553750 is a deficient number, since it is larger than the sum of its proper divisors (38701490).

42553750 is an equidigital number, since it uses as much as digits as its factorization.

42553750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 42553750 is about 6523.3235394237. The cubic root of 42553750 is about 349.1236579561.

The spelling of 42553750 in words is "forty-two million, five hundred fifty-three thousand, seven hundred fifty".