54431066 has 4 divisors (see below), whose sum is σ = 81646602. Its totient is φ = 27215532.

The previous prime is 54431051. The next prime is 54431089. The reversal of 54431066 is 66013445.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66013445 = 5 ⋅13202689.

It can be written as a sum of positive squares in only one way, i.e., 40896025 + 13535041 = 6395^2 + 3679^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13607765 + ... + 13607768.

Almost surely, 2^54431066 is an apocalyptic number.

54431066 is a deficient number, since it is larger than the sum of its proper divisors (27215536).

54431066 is a wasteful number, since it uses less digits than its factorization.

54431066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27215535.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 54431066 is about 7377.7412532563. The cubic root of 54431066 is about 378.9794081957.

The spelling of 54431066 in words is "fifty-four million, four hundred thirty-one thousand, sixty-six".