11257616 has 30 divisors (see below), whose sum is σ = 22515486. Its totient is φ = 5449600.

The previous prime is 11257573. The next prime is 11257627. The reversal of 11257616 is 61675211.

It can be written as a sum of positive squares in only one way, i.e., 6864400 + 4393216 = 2620^2 + 2096^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85871 + ... + 86001.

Almost surely, 2^11257616 is an apocalyptic number.

11257616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11257616 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

11257616 is an equidigital number, since it uses as much as digits as its factorization.

11257616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 174 counting only the distinct ones).

The product of its digits is 2520, while the sum is 29.

The square root of 11257616 is about 3355.2371004148. The cubic root of 11257616 is about 224.1207894458.

The spelling of 11257616 in words is "eleven million, two hundred fifty-seven thousand, six hundred sixteen".