55902213450 has 96 divisors (see below), whose sum is σ = 154153080000. Its totient is φ = 14896474560.

The previous prime is 55902213439. The next prime is 55902213467. The reversal of 55902213450 is 5431220955.

It is a happy number.

55902213450 is a `hidden beast` number, since 5 + 5 + 90 + 221 + 345 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1947301 + ... + 1975799.

It is an arithmetic number, because the mean of its divisors is an integer number (1605761250).

Almost surely, 2^55902213450 is an apocalyptic number.

55902213450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55902213450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77076540000).

55902213450 is an abundant number, since it is smaller than the sum of its proper divisors (98250866550).

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

55902213450 is a wasteful number, since it uses less digits than its factorization.

55902213450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29973 (or 29962 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 55902213450 in words is "fifty-five billion, nine hundred two million, two hundred thirteen thousand, four hundred fifty".