54531505 has 16 divisors (see below), whose sum is σ = 78038784. Its totient is φ = 35766720.

The previous prime is 54531497. The next prime is 54531527. The reversal of 54531505 is 50513545.

It is not a de Polignac number, because 54531505 - 2³ = 54531497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33066 + ... + 34675.

It is an arithmetic number, because the mean of its divisors is an integer number (4877424).

Almost surely, 2^54531505 is an apocalyptic number.

It is an amenable number.

54531505 is a deficient number, since it is larger than the sum of its proper divisors (23507279).

54531505 is a wasteful number, since it uses less digits than its factorization.

54531505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67776.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 54531505 is about 7384.5450096807. The cubic root of 54531505 is about 379.2123690567.

The spelling of 54531505 in words is "fifty-four million, five hundred thirty-one thousand, five hundred five".