1653220550 has 12 divisors (see below), whose sum is σ = 3074990316. Its totient is φ = 661288200.

The previous prime is 1653220529. The next prime is 1653220577. The reversal of 1653220550 is 550223561.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16532156 + ... + 16532255.

It is an arithmetic number, because the mean of its divisors is an integer number (256249193).

Almost surely, 2^1653220550 is an apocalyptic number.

1653220550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1653220550 is a deficient number, since it is larger than the sum of its proper divisors (1421769766).

1653220550 is a wasteful number, since it uses less digits than its factorization.

1653220550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33064423 (or 33064418 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1653220550 is about 40659.8149282556. The cubic root of 1653220550 is about 1182.4340616433.

The spelling of 1653220550 in words is "one billion, six hundred fifty-three million, two hundred twenty thousand, five hundred fifty".