42545054 has 4 divisors (see below), whose sum is σ = 63817584. Its totient is φ = 21272526.

The previous prime is 42545029. The next prime is 42545071. The reversal of 42545054 is 45054524.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10636262 + ... + 10636265.

It is an arithmetic number, because the mean of its divisors is an integer number (15954396).

Almost surely, 2^42545054 is an apocalyptic number.

42545054 is a deficient number, since it is larger than the sum of its proper divisors (21272530).

42545054 is a wasteful number, since it uses less digits than its factorization.

42545054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21272529.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 42545054 is about 6522.6569739639. The cubic root of 42545054 is about 349.0998748100.

Adding to 42545054 its reverse (45054524), we get a palindrome (87599578).

The spelling of 42545054 in words is "forty-two million, five hundred forty-five thousand, fifty-four".