1355403550 has 12 divisors (see below), whose sum is σ = 2521050696. Its totient is φ = 542161400.

The previous prime is 1355403481. The next prime is 1355403571. The reversal of 1355403550 is 553045531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13553986 + ... + 13554085.

It is an arithmetic number, because the mean of its divisors is an integer number (210087558).

Almost surely, 2^1355403550 is an apocalyptic number.

1355403550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1355403550 is a deficient number, since it is larger than the sum of its proper divisors (1165647146).

1355403550 is a wasteful number, since it uses less digits than its factorization.

1355403550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27108083 (or 27108078 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 1355403550 is about 36815.8057089615. The cubic root of 1355403550 is about 1106.6820679176.

The spelling of 1355403550 in words is "one billion, three hundred fifty-five million, four hundred three thousand, five hundred fifty".