1352556051509 has 16 divisors (see below), whose sum is σ = 1542320766000. Its totient is φ = 1175041105920.

The previous prime is 1352556051493. The next prime is 1352556051541. The reversal of 1352556051509 is 9051506552531.

It can be written as a sum of positive squares in 8 ways, for example, as 31585109284 + 1320970942225 = 177722^2 + 1149335^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352556051509 - 2⁴ = 1352556051493 is a prime.

It is a super-2 number, since 2×1352556051509² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352556051589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15481469 + ... + 15568589.

It is an arithmetic number, because the mean of its divisors is an integer number (96395047875).

Almost surely, 2^{1352556051509} is an apocalyptic number.

It is an amenable number.

1352556051509 is a deficient number, since it is larger than the sum of its proper divisors (189764714491).

1352556051509 is a wasteful number, since it uses less digits than its factorization.

1352556051509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157400.

The product of its (nonzero) digits is 1012500, while the sum is 47.

The spelling of 1352556051509 in words is "one trillion, three hundred fifty-two billion, five hundred fifty-six million, fifty-one thousand, five hundred nine".