55390594 has 8 divisors (see below), whose sum is σ = 94955328. Its totient is φ = 23738820.

The previous prime is 55390561. The next prime is 55390603. The reversal of 55390594 is 49509355.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1978222 + ... + 1978249.

It is an arithmetic number, because the mean of its divisors is an integer number (11869416).

Almost surely, 2^55390594 is an apocalyptic number.

55390594 is a deficient number, since it is larger than the sum of its proper divisors (39564734).

55390594 is a wasteful number, since it uses less digits than its factorization.

55390594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956480.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 55390594 is about 7442.4857406649. The cubic root of 55390594 is about 381.1933720785.

The spelling of 55390594 in words is "fifty-five million, three hundred ninety thousand, five hundred ninety-four".