11551906 has 8 divisors (see below), whose sum is σ = 17372700. Its totient is φ = 5761008.

The previous prime is 11551879. The next prime is 11551909. The reversal of 11551906 is 60915511.

It can be written as a sum of positive squares in 2 ways, for example, as 10725625 + 826281 = 3275^2 + 909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11551909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6481 + ... + 8068.

Almost surely, 2^11551906 is an apocalyptic number.

11551906 is a deficient number, since it is larger than the sum of its proper divisors (5820794).

11551906 is a wasteful number, since it uses less digits than its factorization.

11551906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14948.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 11551906 is about 3398.8094974564. The cubic root of 11551906 is about 226.0569595643.

The spelling of 11551906 in words is "eleven million, five hundred fifty-one thousand, nine hundred six".