11387255 has 8 divisors (see below), whose sum is σ = 14907024. Its totient is φ = 8281600.

The previous prime is 11387239. The next prime is 11387269. The reversal of 11387255 is 55278311.

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

It is not a de Polignac number, because 11387255 - 2⁴ = 11387239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103466 + ... + 103575.

It is an arithmetic number, because the mean of its divisors is an integer number (1863378).

Almost surely, 2^11387255 is an apocalyptic number.

11387255 is a deficient number, since it is larger than the sum of its proper divisors (3519769).

11387255 is a wasteful number, since it uses less digits than its factorization.

11387255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207057.

The product of its digits is 8400, while the sum is 32.

The square root of 11387255 is about 3374.5007038079. The cubic root of 11387255 is about 224.9778085109.

It can be divided in two parts, 1138725 and 5, that multiplied together give a triangular number (5693625 = T₃₃₇₄).

The spelling of 11387255 in words is "eleven million, three hundred eighty-seven thousand, two hundred fifty-five".