55706831895 has 64 divisors (see below), whose sum is σ = 105416640000. Its totient is φ = 24764259840.

The previous prime is 55706831893. The next prime is 55706831911. The reversal of 55706831895 is 59813860755.

It is a happy number.

55706831895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55706831895 - 2¹ = 55706831893 is a prime.

It is a super-2 number, since 2×55706831895² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55706831893) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 232456 + ... + 406754.

It is an arithmetic number, because the mean of its divisors is an integer number (1647135000).

Almost surely, 2^55706831895 is an apocalyptic number.

55706831895 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55706831895 is a deficient number, since it is larger than the sum of its proper divisors (49709808105).

55706831895 is a wasteful number, since it uses less digits than its factorization.

55706831895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174480.

The product of its (nonzero) digits is 9072000, while the sum is 57.

The spelling of 55706831895 in words is "fifty-five billion, seven hundred six million, eight hundred thirty-one thousand, eight hundred ninety-five".