42372554 has 12 divisors (see below), whose sum is σ = 73935954. Its totient is φ = 18159624.

The previous prime is 42372541. The next prime is 42372559. The reversal of 42372554 is 45527324.

It can be written as a sum of positive squares in only one way, i.e., 32228329 + 10144225 = 5677^2 + 3185^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42372554.

It is not an unprimeable number, because it can be changed into a prime (42372559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216089 + ... + 216284.

Almost surely, 2^42372554 is an apocalyptic number.

42372554 is a deficient number, since it is larger than the sum of its proper divisors (31563400).

42372554 is a wasteful number, since it uses less digits than its factorization.

42372554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432389 (or 432382 counting only the distinct ones).

The product of its digits is 33600, while the sum is 32.

The square root of 42372554 is about 6509.4204043064. The cubic root of 42372554 is about 348.6274242818.

Adding to 42372554 its reverse (45527324), we get a palindrome (87899878).

The spelling of 42372554 in words is "forty-two million, three hundred seventy-two thousand, five hundred fifty-four".