1530222550 has 24 divisors (see below), whose sum is σ = 2865330000. Its totient is φ = 607978080.

The previous prime is 1530222539. The next prime is 1530222557. The reversal of 1530222550 is 552220351.

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 (1530222557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95250 + ... + 110149.

It is an arithmetic number, because the mean of its divisors is an integer number (119388750).

Almost surely, 2^1530222550 is an apocalyptic number.

1530222550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1530222550 is a deficient number, since it is larger than the sum of its proper divisors (1335107450).

1530222550 is a wasteful number, since it uses less digits than its factorization.

1530222550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205560 (or 205555 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 1530222550 is about 39118.0591287451. The cubic root of 1530222550 is about 1152.3512198091.

The spelling of 1530222550 in words is "one billion, five hundred thirty million, two hundred twenty-two thousand, five hundred fifty".