11961552 has 20 divisors (see below), whose sum is σ = 30900800. Its totient is φ = 3987168.

The previous prime is 11961527. The next prime is 11961563. The reversal of 11961552 is 25516911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124552 + ... + 124647.

It is an arithmetic number, because the mean of its divisors is an integer number (1545040).

Almost surely, 2^11961552 is an apocalyptic number.

11961552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11961552 is an abundant number, since it is smaller than the sum of its proper divisors (18939248).

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

11961552 is a wasteful number, since it uses less digits than its factorization.

11961552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249210 (or 249204 counting only the distinct ones).

The product of its digits is 2700, while the sum is 30.

The square root of 11961552 is about 3458.5476720728. The cubic root of 11961552 is about 228.6980759449.

The spelling of 11961552 in words is "eleven million, nine hundred sixty-one thousand, five hundred fifty-two".