55933487 has 4 divisors (see below), whose sum is σ = 56033400. Its totient is φ = 55833576.

The previous prime is 55933483. The next prime is 55933499. The reversal of 55933487 is 78433955.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55933487 - 2² = 55933483 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 (55933483) 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, 49112 + ... + 50237.

It is an arithmetic number, because the mean of its divisors is an integer number (14008350).

Almost surely, 2^55933487 is an apocalyptic number.

55933487 is a deficient number, since it is larger than the sum of its proper divisors (99913).

55933487 is an equidigital number, since it uses as much as digits as its factorization.

55933487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99912.

The product of its digits is 453600, while the sum is 44.

The square root of 55933487 is about 7478.8693664216. The cubic root of 55933487 is about 382.4347065561.

The spelling of 55933487 in words is "fifty-five million, nine hundred thirty-three thousand, four hundred eighty-seven".