1351552553 has 4 divisors (see below), whose sum is σ = 1455518148. Its totient is φ = 1247586960.

The previous prime is 1351552549. The next prime is 1351552561. The reversal of 1351552553 is 3552551531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3552551531 = 433 ⋅8204507.

It can be written as a sum of positive squares in 2 ways, for example, as 915244009 + 436308544 = 30253^2 + 20888^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351552553 - 2² = 1351552549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351552753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51982778 + ... + 51982803.

It is an arithmetic number, because the mean of its divisors is an integer number (363879537).

Almost surely, 2^1351552553 is an apocalyptic number.

1351552553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1351552553 is a deficient number, since it is larger than the sum of its proper divisors (103965595).

1351552553 is a wasteful number, since it uses less digits than its factorization.

1351552553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103965594.

The product of its digits is 56250, while the sum is 35.

The square root of 1351552553 is about 36763.4676411244. The cubic root of 1351552553 is about 1105.6329653659.

The spelling of 1351552553 in words is "one billion, three hundred fifty-one million, five hundred fifty-two thousand, five hundred fifty-three".