1493685555 has 32 divisors (see below), whose sum is σ = 2527193088. Its totient is φ = 752121600.

The previous prime is 1493685547. The next prime is 1493685563. The reversal of 1493685555 is 5555863941.

It is an interprime number because it is at equal distance from previous prime (1493685547) and next prime (1493685563).

It is not a de Polignac number, because 1493685555 - 2³ = 1493685547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1493685498 and 1493685507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20109 + ... + 58238.

It is an arithmetic number, because the mean of its divisors is an integer number (78974784).

Almost surely, 2^1493685555 is an apocalyptic number.

1493685555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1493685555 is a deficient number, since it is larger than the sum of its proper divisors (1033507533).

1493685555 is a wasteful number, since it uses less digits than its factorization.

1493685555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78427.

The product of its digits is 3240000, while the sum is 51.

The square root of 1493685555 is about 38648.2283552558. The cubic root of 1493685555 is about 1143.1057088545.

The spelling of 1493685555 in words is "one billion, four hundred ninety-three million, six hundred eighty-five thousand, five hundred fifty-five".