11900550 has 24 divisors (see below), whose sum is σ = 29513736. Its totient is φ = 3173440.

The previous prime is 11900543. The next prime is 11900557. The reversal of 11900550 is 5500911.

It is a happy number.

11900550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11900543) and next prime (11900557).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11900557) 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, 39519 + ... + 39818.

It is an arithmetic number, because the mean of its divisors is an integer number (1229739).

Almost surely, 2^11900550 is an apocalyptic number.

11900550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11900550 is an abundant number, since it is smaller than the sum of its proper divisors (17613186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11900550 is a wasteful number, since it uses less digits than its factorization.

11900550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79352 (or 79347 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 11900550 is about 3449.7173797284. The cubic root of 11900550 is about 228.3086386469.

The spelling of 11900550 in words is "eleven million, nine hundred thousand, five hundred fifty".