12693550 has 12 divisors (see below), whose sum is σ = 23610096. Its totient is φ = 5077400.

The previous prime is 12693547. The next prime is 12693589. The reversal of 12693550 is 5539621.

It is a super-2 number, since 2×12693550² = 322252423205000, which contains 22 as substring.

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, 126886 + ... + 126985.

It is an arithmetic number, because the mean of its divisors is an integer number (1967508).

Almost surely, 2^12693550 is an apocalyptic number.

12693550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12693550 is a deficient number, since it is larger than the sum of its proper divisors (10916546).

12693550 is a wasteful number, since it uses less digits than its factorization.

12693550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253883 (or 253878 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 12693550 is about 3562.8008644885. The cubic root of 12693550 is about 233.2711512307.

The spelling of 12693550 in words is "twelve million, six hundred ninety-three thousand, five hundred fifty".