54403783 has 12 divisors (see below), whose sum is σ = 65623440. Its totient is φ = 44175456.

The previous prime is 54403709. The next prime is 54403787. The reversal of 54403783 is 38730445.

It is a happy number.

It is not a de Polignac number, because 54403783 - 2¹⁷ = 54272711 is a prime.

It is a super-2 number, since 2×54403783² = 5919543209422178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54403787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8238 + ... + 13291.

It is an arithmetic number, because the mean of its divisors is an integer number (5468620).

Almost surely, 2^54403783 is an apocalyptic number.

54403783 is a deficient number, since it is larger than the sum of its proper divisors (11219657).

54403783 is a wasteful number, since it uses less digits than its factorization.

54403783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21574 (or 21555 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 54403783 is about 7375.8920138516. The cubic root of 54403783 is about 378.9160777976.

The spelling of 54403783 in words is "fifty-four million, four hundred three thousand, seven hundred eighty-three".