11957755 has 8 divisors (see below), whose sum is σ = 14374224. Its totient is φ = 9549600.

The previous prime is 11957747. The next prime is 11957761. The reversal of 11957755 is 55775911.

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

It is not a de Polignac number, because 11957755 - 2³ = 11957747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1725 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (1796778).

Almost surely, 2^11957755 is an apocalyptic number.

11957755 is a deficient number, since it is larger than the sum of its proper divisors (2416469).

11957755 is an equidigital number, since it uses as much as digits as its factorization.

11957755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4157.

The product of its digits is 55125, while the sum is 40.

The square root of 11957755 is about 3457.9986986695. The cubic root of 11957755 is about 228.6738745566.

The spelling of 11957755 in words is "eleven million, nine hundred fifty-seven thousand, seven hundred fifty-five".