11857755 has 96 divisors (see below), whose sum is σ = 25510464. Its totient is φ = 4644864.

The previous prime is 11857753. The next prime is 11857759. The reversal of 11857755 is 55775811.

It is a happy number.

11857755 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11857755 - 2¹ = 11857753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

Its product of digits (49000) is a multiple of the sum of its prime factors (125).

It is not an unprimeable number, because it can be changed into a prime (11857751) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 162399 + ... + 162471.

It is an arithmetic number, because the mean of its divisors is an integer number (265734).

Almost surely, 2^11857755 is an apocalyptic number.

11857755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11857755 is an abundant number, since it is smaller than the sum of its proper divisors (13652709).

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

11857755 is a wasteful number, since it uses less digits than its factorization.

11857755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 118 counting only the distinct ones).

The product of its digits is 49000, while the sum is 39.

The square root of 11857755 is about 3443.5091113572. The cubic root of 11857755 is about 228.0346400123.

The spelling of 11857755 in words is "eleven million, eight hundred fifty-seven thousand, seven hundred fifty-five".