55657841437 has 16 divisors (see below), whose sum is σ = 61344157824. Its totient is φ = 50076360000.

The previous prime is 55657841423. The next prime is 55657841443. The reversal of 55657841437 is 73414875655.

It is a cyclic number.

It is not a de Polignac number, because 55657841437 - 2²³ = 55649452829 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 (55657811437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3098512 + ... + 3116422.

It is an arithmetic number, because the mean of its divisors is an integer number (3834009864).

Almost surely, 2^55657841437 is an apocalyptic number.

It is an amenable number.

55657841437 is a deficient number, since it is larger than the sum of its proper divisors (5686316387).

55657841437 is a wasteful number, since it uses less digits than its factorization.

55657841437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20820.

The product of its digits is 14112000, while the sum is 55.

The spelling of 55657841437 in words is "fifty-five billion, six hundred fifty-seven million, eight hundred forty-one thousand, four hundred thirty-seven".