55032511 has 4 divisors (see below), whose sum is σ = 55350792. Its totient is φ = 54714232.

The previous prime is 55032499. The next prime is 55032547. The reversal of 55032511 is 11523055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11523055 = 5 ⋅2304611.

It is a cyclic number.

It is not a de Polignac number, because 55032511 - 2¹¹ = 55030463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55032581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158881 + ... + 159226.

It is an arithmetic number, because the mean of its divisors is an integer number (13837698).

Almost surely, 2^55032511 is an apocalyptic number.

55032511 is a deficient number, since it is larger than the sum of its proper divisors (318281).

55032511 is a wasteful number, since it uses less digits than its factorization.

55032511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318280.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 55032511 is about 7418.3900544525. The cubic root of 55032511 is about 380.3701633091.

Adding to 55032511 its reverse (11523055), we get a palindrome (66555566).

The spelling of 55032511 in words is "fifty-five million, thirty-two thousand, five hundred eleven".