55409373 has 8 divisors (see below), whose sum is σ = 82088000. Its totient is φ = 36939564.

The previous prime is 55409371. The next prime is 55409383. The reversal of 55409373 is 37390455.

It is not a de Polignac number, because 55409373 - 2¹ = 55409371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55409371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026073 + ... + 1026126.

It is an arithmetic number, because the mean of its divisors is an integer number (10261000).

Almost surely, 2^55409373 is an apocalyptic number.

It is an amenable number.

55409373 is a deficient number, since it is larger than the sum of its proper divisors (26678627).

55409373 is a wasteful number, since it uses less digits than its factorization.

55409373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052208 (or 2052202 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 55409373 is about 7443.7472418131. The cubic root of 55409373 is about 381.2364457064.

The spelling of 55409373 in words is "fifty-five million, four hundred nine thousand, three hundred seventy-three".