54055917 has 30 divisors (see below), whose sum is σ = 82976234. Its totient is φ = 35069760.

The previous prime is 54055891. The next prime is 54055951. The reversal of 54055917 is 71955045.

It can be written as a sum of positive squares in 3 ways, for example, as 385641 + 53670276 = 621^2 + 7326^2 .

It is not a de Polignac number, because 54055917 - 2⁷ = 54055789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54055997) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 135963 + ... + 136359.

Almost surely, 2^54055917 is an apocalyptic number.

It is an amenable number.

54055917 is a deficient number, since it is larger than the sum of its proper divisors (28920317).

54055917 is an equidigital number, since it uses as much as digits as its factorization.

54055917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 54055917 is about 7352.2729138682. The cubic root of 54055917 is about 378.1067347870.

The spelling of 54055917 in words is "fifty-four million, fifty-five thousand, nine hundred seventeen".