1355208725 has 24 divisors (see below), whose sum is σ = 1904982240. Its totient is φ = 948093120.

The previous prime is 1355208713. The next prime is 1355208779. The reversal of 1355208725 is 5278025531.

It is not a de Polignac number, because 1355208725 - 2¹⁰ = 1355207701 is a prime.

It is a super-2 number, since 2×1355208725² = 3673181376632251250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 103559 + ... + 115908.

It is an arithmetic number, because the mean of its divisors is an integer number (79374260).

Almost surely, 2^1355208725 is an apocalyptic number.

It is an amenable number.

1355208725 is a deficient number, since it is larger than the sum of its proper divisors (549773515).

1355208725 is a wasteful number, since it uses less digits than its factorization.

1355208725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219509 (or 219504 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 1355208725 is about 36813.1596715088. The cubic root of 1355208725 is about 1106.6290407423.

The spelling of 1355208725 in words is "one billion, three hundred fifty-five million, two hundred eight thousand, seven hundred twenty-five".