54437665 has 16 divisors (see below), whose sum is σ = 68400000. Its totient is φ = 41513472.

The previous prime is 54437657. The next prime is 54437749. The reversal of 54437665 is 56673445.

It is a cyclic number.

It is not a de Polignac number, because 54437665 - 2³ = 54437657 is a prime.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42961 + ... + 44209.

It is an arithmetic number, because the mean of its divisors is an integer number (4275000).

Almost surely, 2^54437665 is an apocalyptic number.

It is an amenable number.

54437665 is a deficient number, since it is larger than the sum of its proper divisors (13962335).

54437665 is a wasteful number, since it uses less digits than its factorization.

54437665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656.

The product of its digits is 302400, while the sum is 40.

The square root of 54437665 is about 7378.1884633018. The cubic root of 54437665 is about 378.9947228817.

The spelling of 54437665 in words is "fifty-four million, four hundred thirty-seven thousand, six hundred sixty-five".