1355478553 has 16 divisors (see below), whose sum is σ = 1596119616. Its totient is φ = 1134843840.

The previous prime is 1355478539. The next prime is 1355478571. The reversal of 1355478553 is 3558745531.

It is not a de Polignac number, because 1355478553 - 2⁹ = 1355478041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1355478533) 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, 52651 + ... + 74047.

It is an arithmetic number, because the mean of its divisors is an integer number (99757476).

Almost surely, 2^1355478553 is an apocalyptic number.

1355478553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1355478553 is a deficient number, since it is larger than the sum of its proper divisors (240641063).

1355478553 is a wasteful number, since it uses less digits than its factorization.

1355478553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21864.

The product of its digits is 1260000, while the sum is 46.

The square root of 1355478553 is about 36816.8243198677. The cubic root of 1355478553 is about 1106.7024807667.

The spelling of 1355478553 in words is "one billion, three hundred fifty-five million, four hundred seventy-eight thousand, five hundred fifty-three".