54100645 has 8 divisors (see below), whose sum is σ = 65703456. Its totient is φ = 42758736.

The previous prime is 54100639. The next prime is 54100663. The reversal of 54100645 is 54600145.

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 54100645 - 2³ = 54100637 is a prime.

It is a super-3 number, since 3×54100645³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64767 + ... + 65596.

It is an arithmetic number, because the mean of its divisors is an integer number (8212932).

Almost surely, 2^54100645 is an apocalyptic number.

It is an amenable number.

54100645 is a deficient number, since it is larger than the sum of its proper divisors (11602811).

54100645 is a wasteful number, since it uses less digits than its factorization.

54100645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130451.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 54100645 is about 7355.3140653544. The cubic root of 54100645 is about 378.2109928502.

Subtracting 54100645 from its reverse (54600145), we obtain a triangular number (499500 = T₉₉₉).

It can be divided in two parts, 54100 and 645, that added together give a palindrome (54745).

The spelling of 54100645 in words is "fifty-four million, one hundred thousand, six hundred forty-five".