1552355445 has 16 divisors (see below), whose sum is σ = 2591759232. Its totient is φ = 791926080.

The previous prime is 1552355401. The next prime is 1552355507. The reversal of 1552355445 is 5445532551.

It is not a de Polignac number, because 1552355445 - 2¹⁰ = 1552354421 is a prime.

It is a super-2 number, since 2×1552355445² = 4819614855242296050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2249446 + ... + 2250135.

It is an arithmetic number, because the mean of its divisors is an integer number (161984952).

Almost surely, 2^1552355445 is an apocalyptic number.

1552355445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1552355445 is a deficient number, since it is larger than the sum of its proper divisors (1039403787).

1552355445 is a wasteful number, since it uses less digits than its factorization.

1552355445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499612.

The product of its digits is 300000, while the sum is 39.

The square root of 1552355445 is about 39399.9421953891. The cubic root of 1552355445 is about 1157.8804549948.

Adding to 1552355445 its reverse (5445532551), we get a palindrome (6997887996).

The spelling of 1552355445 in words is "one billion, five hundred fifty-two million, three hundred fifty-five thousand, four hundred forty-five".