42553745 has 16 divisors (see below), whose sum is σ = 55695360. Its totient is φ = 31022784.

The previous prime is 42553739. The next prime is 42553799. The reversal of 42553745 is 54735524.

It is not a de Polignac number, because 42553745 - 2⁶ = 42553681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 992 + ... + 9278.

It is an arithmetic number, because the mean of its divisors is an integer number (3480960).

Almost surely, 2^42553745 is an apocalyptic number.

It is an amenable number.

42553745 is a deficient number, since it is larger than the sum of its proper divisors (13141615).

42553745 is a wasteful number, since it uses less digits than its factorization.

42553745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8384.

The product of its digits is 84000, while the sum is 35.

The square root of 42553745 is about 6523.3231561835. The cubic root of 42553745 is about 349.1236442823.

It can be divided in two parts, 4255 and 3745, that added together give a cube (8000 = 20³).

The spelling of 42553745 in words is "forty-two million, five hundred fifty-three thousand, seven hundred forty-five".