55526057850 has 72 divisors (see below), whose sum is σ = 142617121920. Its totient is φ = 14296331840.

The previous prime is 55526057827. The next prime is 55526057887. The reversal of 55526057850 is 5875062555.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55526057850.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93930 + ... + 346229.

It is an arithmetic number, because the mean of its divisors is an integer number (1980793360).

Almost surely, 2^55526057850 is an apocalyptic number.

55526057850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55526057850 is an abundant number, since it is smaller than the sum of its proper divisors (87091064070).

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

55526057850 is a wasteful number, since it uses less digits than its factorization.

55526057850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440232 (or 440198 counting only the distinct ones).

The product of its (nonzero) digits is 2100000, while the sum is 48.

The spelling of 55526057850 in words is "fifty-five billion, five hundred twenty-six million, fifty-seven thousand, eight hundred fifty".