55387436 has 24 divisors (see below), whose sum is σ = 105821184. Its totient is φ = 25211520.

The previous prime is 55387403. The next prime is 55387441. The reversal of 55387436 is 63478355.

It is a junction number, because it is equal to n+sod(n) for n = 55387393 and 55387402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3500 + ... + 11091.

It is an arithmetic number, because the mean of its divisors is an integer number (4409216).

Almost surely, 2^55387436 is an apocalyptic number.

It is an amenable number.

55387436 is a deficient number, since it is larger than the sum of its proper divisors (50433748).

55387436 is a wasteful number, since it uses less digits than its factorization.

55387436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14681 (or 14679 counting only the distinct ones).

The product of its digits is 302400, while the sum is 41.

The square root of 55387436 is about 7442.2735773418. The cubic root of 55387436 is about 381.1861275780.

The spelling of 55387436 in words is "fifty-five million, three hundred eighty-seven thousand, four hundred thirty-six".