11553542 has 64 divisors (see below), whose sum is σ = 24192000. Its totient is φ = 3991680.

The previous prime is 11553533. The next prime is 11553551. The reversal of 11553542 is 24535511.

It is an interprime number because it is at equal distance from previous prime (11553533) and next prime (11553551).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57959 + ... + 58157.

It is an arithmetic number, because the mean of its divisors is an integer number (378000).

Almost surely, 2^11553542 is an apocalyptic number.

11553542 is an abundant number, since it is smaller than the sum of its proper divisors (12638458).

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

11553542 is a wasteful number, since it uses less digits than its factorization.

11553542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its digits is 3000, while the sum is 26.

The square root of 11553542 is about 3399.0501614422. The cubic root of 11553542 is about 226.0676305805.

The spelling of 11553542 in words is "eleven million, five hundred fifty-three thousand, five hundred forty-two".