42312554 has 4 divisors (see below), whose sum is σ = 63468834. Its totient is φ = 21156276.

The previous prime is 42312553. The next prime is 42312629. The reversal of 42312554 is 45521324.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 21836929 + 20475625 = 4673^2 + 4525^2 .

It is not an unprimeable number, because it can be changed into a prime (42312553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10578137 + ... + 10578140.

Almost surely, 2^42312554 is an apocalyptic number.

42312554 is a deficient number, since it is larger than the sum of its proper divisors (21156280).

42312554 is a wasteful number, since it uses less digits than its factorization.

42312554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21156279.

The product of its digits is 4800, while the sum is 26.

The square root of 42312554 is about 6504.8100664047. The cubic root of 42312554 is about 348.4627931353.

Adding to 42312554 its reverse (45521324), we get a palindrome (87833878).

The spelling of 42312554 in words is "forty-two million, three hundred twelve thousand, five hundred fifty-four".