55661452 has 54 divisors (see below), whose sum is σ = 124601316. Its totient is φ = 21677040.

The previous prime is 55661447. The next prime is 55661467. The reversal of 55661452 is 25416655.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22543 + ... + 24889.

Almost surely, 2^55661452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55661452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62300658).

55661452 is an abundant number, since it is smaller than the sum of its proper divisors (68939864).

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

55661452 is a wasteful number, since it uses less digits than its factorization.

55661452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387 (or 2367 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 55661452 is about 7460.6602924942. The cubic root of 55661452 is about 381.8137026411.

The spelling of 55661452 in words is "fifty-five million, six hundred sixty-one thousand, four hundred fifty-two".