1553200434 has 20 divisors (see below), whose sum is σ = 3480319854. Its totient is φ = 517733424.

The previous prime is 1553200423. The next prime is 1553200447. The reversal of 1553200434 is 4340023551.

It can be written as a sum of positive squares in only one way, i.e., 1119103209 + 434097225 = 33453^2 + 20835^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1553200398 and 1553200407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4793667 + ... + 4793990.

Almost surely, 2^1553200434 is an apocalyptic number.

1553200434 is an abundant number, since it is smaller than the sum of its proper divisors (1927119420).

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

1553200434 is an equidigital number, since it uses as much as digits as its factorization.

1553200434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9587671 (or 9587662 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1553200434 is about 39410.6639629428. The cubic root of 1553200434 is about 1158.0905054232.

Adding to 1553200434 its reverse (4340023551), we get a palindrome (5893223985).

The spelling of 1553200434 in words is "one billion, five hundred fifty-three million, two hundred thousand, four hundred thirty-four".