16525100550 has 288 divisors, whose sum is σ = 49464691200. Its totient is φ = 3638019840.

The previous prime is 16525100549. The next prime is 16525100569. The reversal of 16525100550 is 5500152561.

It is a super-2 number, since 2×16525100550² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 22983091 + ... + 22983809.

It is an arithmetic number, because the mean of its divisors is an integer number (171752400).

Almost surely, 2^16525100550 is an apocalyptic number.

16525100550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16525100550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24732345600).

16525100550 is an abundant number, since it is smaller than the sum of its proper divisors (32939590650).

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

16525100550 is a wasteful number, since it uses less digits than its factorization.

16525100550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 16525100550 in words is "sixteen billion, five hundred twenty-five million, one hundred thousand, five hundred fifty".