11455550 has 24 divisors (see below), whose sum is σ = 21433896. Its totient is φ = 4555040.

The previous prime is 11455547. The next prime is 11455559. The reversal of 11455550 is 5555411.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11455559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9269 + ... + 10431.

It is an arithmetic number, because the mean of its divisors is an integer number (893079).

Almost surely, 2^11455550 is an apocalyptic number.

11455550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11455550 is a deficient number, since it is larger than the sum of its proper divisors (9978346).

11455550 is a wasteful number, since it uses less digits than its factorization.

11455550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 11455550 is about 3384.6048513822. The cubic root of 11455550 is about 225.4266800632.

The spelling of 11455550 in words is "eleven million, four hundred fifty-five thousand, five hundred fifty".