1553223412 has 24 divisors (see below), whose sum is σ = 3028170600. Its totient is φ = 692151936.

The previous prime is 1553223403. The next prime is 1553223421. The reversal of 1553223412 is 2143223551.

It is an interprime number because it is at equal distance from previous prime (1553223403) and next prime (1553223421).

It can be written as a sum of positive squares in 4 ways, for example, as 107246736 + 1445976676 = 10356^2 + 38026^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513487 + ... + 516502.

It is an arithmetic number, because the mean of its divisors is an integer number (126173775).

Almost surely, 2^1553223412 is an apocalyptic number.

It is an amenable number.

1553223412 is a deficient number, since it is larger than the sum of its proper divisors (1474947188).

1553223412 is a wasteful number, since it uses less digits than its factorization.

1553223412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030035 (or 1030033 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 1553223412 is about 39410.9554819469. The cubic root of 1553223412 is about 1158.0962163136.

Adding to 1553223412 its reverse (2143223551), we get a palindrome (3696446963).

The spelling of 1553223412 in words is "one billion, five hundred fifty-three million, two hundred twenty-three thousand, four hundred twelve".