55438377 has 8 divisors (see below), whose sum is σ = 78266016. Its totient is φ = 34784832.

The previous prime is 55438373. The next prime is 55438379. The reversal of 55438377 is 77383455.

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

It is not a de Polignac number, because 55438377 - 2² = 55438373 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55438373) 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, 543463 + ... + 543564.

It is an arithmetic number, because the mean of its divisors is an integer number (9783252).

Almost surely, 2^55438377 is an apocalyptic number.

It is an amenable number.

55438377 is a deficient number, since it is larger than the sum of its proper divisors (22827639).

55438377 is a wasteful number, since it uses less digits than its factorization.

55438377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087047.

The product of its digits is 352800, while the sum is 42.

The square root of 55438377 is about 7445.6951992410. The cubic root of 55438377 is about 381.3029534259.

The spelling of 55438377 in words is "fifty-five million, four hundred thirty-eight thousand, three hundred seventy-seven".