55438492 has 6 divisors (see below), whose sum is σ = 97017368. Its totient is φ = 27719244.

The previous prime is 55438483. The next prime is 55438499. The reversal of 55438492 is 29483455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55438499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6929808 + ... + 6929815.

Almost surely, 2^55438492 is an apocalyptic number.

It is an amenable number.

55438492 is a deficient number, since it is larger than the sum of its proper divisors (41578876).

55438492 is a wasteful number, since it uses less digits than its factorization.

55438492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13859627 (or 13859625 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 55438492 is about 7445.7029218201. The cubic root of 55438492 is about 381.3032170808.

The spelling of 55438492 in words is "fifty-five million, four hundred thirty-eight thousand, four hundred ninety-two".