42550054 has 4 divisors (see below), whose sum is σ = 63825084. Its totient is φ = 21275026.

The previous prime is 42550051. The next prime is 42550061. The reversal of 42550054 is 45005524.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42550051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10637512 + ... + 10637515.

It is an arithmetic number, because the mean of its divisors is an integer number (15956271).

Almost surely, 2^42550054 is an apocalyptic number.

42550054 is a deficient number, since it is larger than the sum of its proper divisors (21275030).

42550054 is a wasteful number, since it uses less digits than its factorization.

42550054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21275029.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 42550054 is about 6523.0402420957. The cubic root of 42550054 is about 349.1135499680.

Adding to 42550054 its reverse (45005524), we get a palindrome (87555578).

The spelling of 42550054 in words is "forty-two million, five hundred fifty thousand, fifty-four".