42450055 has 8 divisors (see below), whose sum is σ = 52696800. Its totient is φ = 32788896.

The previous prime is 42450049. The next prime is 42450059. The reversal of 42450055 is 55005424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42450055 - 2⁹ = 42449543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42450059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146235 + ... + 146524.

It is an arithmetic number, because the mean of its divisors is an integer number (6587100).

Almost surely, 2^42450055 is an apocalyptic number.

42450055 is a deficient number, since it is larger than the sum of its proper divisors (10246745).

42450055 is a wasteful number, since it uses less digits than its factorization.

42450055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292793.

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

The square root of 42450055 is about 6515.3706724944. The cubic root of 42450055 is about 348.8398457298.

Adding to 42450055 its reverse (55005424), we get a palindrome (97455479).

The spelling of 42450055 in words is "forty-two million, four hundred fifty thousand, fifty-five".