55857283405 has 32 divisors (see below), whose sum is σ = 83789015040. Its totient is φ = 34728160320.

The previous prime is 55857283343. The next prime is 55857283411. The reversal of 55857283405 is 50438275855.

It is not a de Polignac number, because 55857283405 - 2⁷ = 55857283277 is a prime.

It is a super-2 number, since 2×55857283405² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45489 + ... + 337318.

It is an arithmetic number, because the mean of its divisors is an integer number (2618406720).

Almost surely, 2^55857283405 is an apocalyptic number.

55857283405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55857283405 is a deficient number, since it is larger than the sum of its proper divisors (27931731635).

55857283405 is a wasteful number, since it uses less digits than its factorization.

55857283405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383209.

The product of its (nonzero) digits is 6720000, while the sum is 52.

The spelling of 55857283405 in words is "fifty-five billion, eight hundred fifty-seven million, two hundred eighty-three thousand, four hundred five".