55409437 has 8 divisors (see below), whose sum is σ = 56854080. Its totient is φ = 53981760.

The previous prime is 55409429. The next prime is 55409441. The reversal of 55409437 is 73490455.

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

It is a cyclic number.

It is not a de Polignac number, because 55409437 - 2³ = 55409429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55409396 and 55409405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55409467) 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, 2512 + ... + 10822.

It is an arithmetic number, because the mean of its divisors is an integer number (7106760).

Almost surely, 2^55409437 is an apocalyptic number.

It is an amenable number.

55409437 is a deficient number, since it is larger than the sum of its proper divisors (1444643).

55409437 is a wasteful number, since it uses less digits than its factorization.

55409437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8483.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 55409437 is about 7443.7515407219. The cubic root of 55409437 is about 381.2365924874.

The spelling of 55409437 in words is "fifty-five million, four hundred nine thousand, four hundred thirty-seven".