55132513 has 8 divisors (see below), whose sum is σ = 58641408. Its totient is φ = 51653184.

The previous prime is 55132507. The next prime is 55132531. The reversal of 55132513 is 31523155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55132513 - 2⁹ = 55132001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55132213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3481 + ... + 11062.

It is an arithmetic number, because the mean of its divisors is an integer number (7330176).

Almost surely, 2^55132513 is an apocalyptic number.

It is an amenable number.

55132513 is a deficient number, since it is larger than the sum of its proper divisors (3508895).

55132513 is a wasteful number, since it uses less digits than its factorization.

55132513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14783.

The product of its digits is 2250, while the sum is 25.

The square root of 55132513 is about 7425.1271369587. The cubic root of 55132513 is about 380.6004196889.

Adding to 55132513 its reverse (31523155), we get a palindrome (86655668).

The spelling of 55132513 in words is "fifty-five million, one hundred thirty-two thousand, five hundred thirteen".