54505145 has 16 divisors (see below), whose sum is σ = 69569280. Its totient is φ = 40852224.

The previous prime is 54505141. The next prime is 54505159. The reversal of 54505145 is 54150545.

It is a happy number.

It is not a de Polignac number, because 54505145 - 2² = 54505141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54505141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18974 + ... + 21656.

It is an arithmetic number, because the mean of its divisors is an integer number (4348080).

Almost surely, 2^54505145 is an apocalyptic number.

It is an amenable number.

54505145 is a deficient number, since it is larger than the sum of its proper divisors (15064135).

54505145 is a wasteful number, since it uses less digits than its factorization.

54505145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 54505145 is about 7382.7599852630. The cubic root of 54505145 is about 379.1512566830.

The spelling of 54505145 in words is "fifty-four million, five hundred five thousand, one hundred forty-five".