54555240 has 32 divisors (see below), whose sum is σ = 163666080. Its totient is φ = 14548032.

The previous prime is 54555229. The next prime is 54555247. The reversal of 54555240 is 4255545.

It is a super-2 number, since 2×54555240² = 5952548422915200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 54555198 and 54555207.

It is not an unprimeable number, because it can be changed into a prime (54555247) 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, 227194 + ... + 227433.

It is an arithmetic number, because the mean of its divisors is an integer number (5114565).

Almost surely, 2^54555240 is an apocalyptic number.

It is an amenable number.

54555240 is an abundant number, since it is smaller than the sum of its proper divisors (109110840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54555240 is a wasteful number, since it uses less digits than its factorization.

54555240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454641 (or 454637 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 54555240 is about 7386.1519074549. The cubic root of 54555240 is about 379.2673788475.

The spelling of 54555240 in words is "fifty-four million, five hundred fifty-five thousand, two hundred forty".