55257505802500 has 60 divisors (see below), whose sum is σ = 120919943544400. Its totient is φ = 22087851444000.

The previous prime is 55257505802491. The next prime is 55257505802507. The reversal of 55257505802500 is 520850575255.

It is not an unprimeable number, because it can be changed into a prime (55257505802507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3927210 + ... + 11222209.

Almost surely, 2^{55257505802500} is an apocalyptic number.

55257505802500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55257505802500 is an abundant number, since it is smaller than the sum of its proper divisors (65662437741900).

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

55257505802500 is a wasteful number, since it uses less digits than its factorization.

55257505802500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15150902 (or 15150885 counting only the distinct ones).

The product of its (nonzero) digits is 3500000, while the sum is 49.

The spelling of 55257505802500 in words is "fifty-five trillion, two hundred fifty-seven billion, five hundred five million, eight hundred two thousand, five hundred".