54105556 has 24 divisors (see below), whose sum is σ = 96803840. Its totient is φ = 26453952.

The previous prime is 54105553. The next prime is 54105587. The reversal of 54105556 is 65550145.

It is a super-2 number, since 2×54105556² = 5854822380138272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54105553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36355 + ... + 37813.

Almost surely, 2^54105556 is an apocalyptic number.

It is an amenable number.

54105556 is a deficient number, since it is larger than the sum of its proper divisors (42698284).

54105556 is a wasteful number, since it uses less digits than its factorization.

54105556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663 (or 1661 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 54105556 is about 7355.6478980441. The cubic root of 54105556 is about 378.2224365707. Note that the first 3 decimals are identical.

The spelling of 54105556 in words is "fifty-four million, one hundred five thousand, five hundred fifty-six".