55132551 has 12 divisors (see below), whose sum is σ = 81330912. Its totient is φ = 35972736.

The previous prime is 55132531. The next prime is 55132603. The reversal of 55132551 is 15523155.

It is not a de Polignac number, because 55132551 - 2⁶ = 55132487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55132531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64746 + ... + 65591.

It is an arithmetic number, because the mean of its divisors is an integer number (6777576).

Almost surely, 2^55132551 is an apocalyptic number.

55132551 is a deficient number, since it is larger than the sum of its proper divisors (26198361).

55132551 is a wasteful number, since it uses less digits than its factorization.

55132551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130390 (or 130387 counting only the distinct ones).

The product of its digits is 3750, while the sum is 27.

The square root of 55132551 is about 7425.1296958370. The cubic root of 55132551 is about 380.6005071316.

The spelling of 55132551 in words is "fifty-five million, one hundred thirty-two thousand, five hundred fifty-one".