55437838 has 8 divisors (see below), whose sum is σ = 83707920. Its totient is φ = 27535200.

The previous prime is 55437829. The next prime is 55437847. The reversal of 55437838 is 83873455.

It is an interprime number because it is at equal distance from previous prime (55437829) and next prime (55437847).

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

It is a super-2 number, since 2×55437838² = 6146707764228488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55437794 and 55437803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91483 + ... + 92086.

It is an arithmetic number, because the mean of its divisors is an integer number (10463490).

Almost surely, 2^55437838 is an apocalyptic number.

55437838 is a deficient number, since it is larger than the sum of its proper divisors (28270082).

55437838 is a wasteful number, since it uses less digits than its factorization.

55437838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183722.

The product of its digits is 403200, while the sum is 43.

The square root of 55437838 is about 7445.6590037417. The cubic root of 55437838 is about 381.3017176817.

The spelling of 55437838 in words is "fifty-five million, four hundred thirty-seven thousand, eight hundred thirty-eight".