11552420 has 24 divisors (see below), whose sum is σ = 26466048. Its totient is φ = 4200800.

The previous prime is 11552413. The next prime is 11552449. The reversal of 11552420 is 2425511.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11552392 and 11552401.

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, 26036 + ... + 26475.

It is an arithmetic number, because the mean of its divisors is an integer number (1102752).

Almost surely, 2^11552420 is an apocalyptic number.

11552420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11552420 is an abundant number, since it is smaller than the sum of its proper divisors (14913628).

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

11552420 is a wasteful number, since it uses less digits than its factorization.

11552420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52531 (or 52529 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 11552420 is about 3398.8851113269. The cubic root of 11552420 is about 226.0603123026.

Adding to 11552420 its reverse (2425511), we get a palindrome (13977931).

The spelling of 11552420 in words is "eleven million, five hundred fifty-two thousand, four hundred twenty".