11552005 has 8 divisors (see below), whose sum is σ = 14340600. Its totient is φ = 8922816.

The previous prime is 11551999. The next prime is 11552011. The reversal of 11552005 is 50025511.

It is an interprime number because it is at equal distance from previous prime (11551999) and next prime (11552011).

It can be written as a sum of positive squares in 4 ways, for example, as 1324801 + 10227204 = 1151^2 + 3198^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11552005 - 2¹³ = 11543813 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, 39690 + ... + 39979.

It is an arithmetic number, because the mean of its divisors is an integer number (1792575).

Almost surely, 2^11552005 is an apocalyptic number.

It is an amenable number.

11552005 is a deficient number, since it is larger than the sum of its proper divisors (2788595).

11552005 is an equidigital number, since it uses as much as digits as its factorization.

11552005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79703.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 11552005 is about 3398.8240613483. The cubic root of 11552005 is about 226.0576053329.

Adding to 11552005 its reverse (50025511), we get a palindrome (61577516).

It can be divided in two parts, 1155 and 2005, that added together give a triangular number (3160 = T₇₉).

The spelling of 11552005 in words is "eleven million, five hundred fifty-two thousand, five".