1022550550 has 72 divisors (see below), whose sum is σ = 2294357616. Its totient is φ = 332095680.

The previous prime is 1022550511. The next prime is 1022550553. The reversal of 1022550550 is 550552201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022550553) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 122304 + ... + 130396.

It is an arithmetic number, because the mean of its divisors is an integer number (31866078).

Almost surely, 2^1022550550 is an apocalyptic number.

1022550550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1022550550 is an abundant number, since it is smaller than the sum of its proper divisors (1271807066).

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

1022550550 is a wasteful number, since it uses less digits than its factorization.

1022550550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8150 (or 8126 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 1022550550 is about 31977.3443237552. The cubic root of 1022550550 is about 1007.4610443718.

The spelling of 1022550550 in words is "one billion, twenty-two million, five hundred fifty thousand, five hundred fifty".