55540837 has 8 divisors (see below), whose sum is σ = 63224640. Its totient is φ = 48296160.

The previous prime is 55540831. The next prime is 55540843. The reversal of 55540837 is 73804555.

It is the 3043-rd star number.

It is an interprime number because it is at equal distance from previous prime (55540831) and next prime (55540843).

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

It is not a de Polignac number, because 55540837 - 2²³ = 47152229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55540796 and 55540805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55540831) 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, 109512 + ... + 110017.

It is an arithmetic number, because the mean of its divisors is an integer number (7903080).

Almost surely, 2^55540837 is an apocalyptic number.

It is an amenable number.

55540837 is a deficient number, since it is larger than the sum of its proper divisors (7683803).

55540837 is a wasteful number, since it uses less digits than its factorization.

55540837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219563.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 55540837 is about 7452.5725088724. The cubic root of 55540837 is about 381.5377141278.

The spelling of 55540837 in words is "fifty-five million, five hundred forty thousand, eight hundred thirty-seven".