55810457136 has 160 divisors (see below), whose sum is σ = 183462702080. Its totient is φ = 15912681984.

The previous prime is 55810457113. The next prime is 55810457243. The reversal of 55810457136 is 63175401855.

55810457136 is a `hidden beast` number, since 5 + 58 + 10 + 457 + 136 = 666.

It is a super-2 number, since 2×55810457136² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55810457091 and 55810457100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1453740 + ... + 1491636.

It is an arithmetic number, because the mean of its divisors is an integer number (1146641888).

Almost surely, 2^55810457136 is an apocalyptic number.

55810457136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55810457136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91731351040).

55810457136 is an abundant number, since it is smaller than the sum of its proper divisors (127652244944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55810457136 is a wasteful number, since it uses less digits than its factorization.

55810457136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38408 (or 38396 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 55810457136 in words is "fifty-five billion, eight hundred ten million, four hundred fifty-seven thousand, one hundred thirty-six".