55132545 has 32 divisors (see below), whose sum is σ = 95622912. Its totient is φ = 26963712.

The previous prime is 55132531. The next prime is 55132603. The reversal of 55132545 is 54523155.

It is a happy number.

It is not a de Polignac number, because 55132545 - 2⁸ = 55132289 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31719 + ... + 33411.

It is an arithmetic number, because the mean of its divisors is an integer number (2988216).

Almost surely, 2^55132545 is an apocalyptic number.

It is an amenable number.

55132545 is a deficient number, since it is larger than the sum of its proper divisors (40490367).

55132545 is a wasteful number, since it uses less digits than its factorization.

55132545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881.

The product of its digits is 15000, while the sum is 30.

The square root of 55132545 is about 7425.1292918036. The cubic root of 55132545 is about 380.6004933248.

The spelling of 55132545 in words is "fifty-five million, one hundred thirty-two thousand, five hundred forty-five".