552361640 has 32 divisors (see below), whose sum is σ = 1243766880. Its totient is φ = 220775232.

The previous prime is 552361633. The next prime is 552361643. The reversal of 552361640 is 46163255.

It is a junction number, because it is equal to n+sod(n) for n = 552361597 and 552361606.

It is not an unprimeable number, because it can be changed into a prime (552361643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56387 + ... + 65453.

It is an arithmetic number, because the mean of its divisors is an integer number (38867715).

Almost surely, 2^552361640 is an apocalyptic number.

It is an amenable number.

552361640 is an abundant number, since it is smaller than the sum of its proper divisors (691405240).

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

552361640 is a wasteful number, since it uses less digits than its factorization.

552361640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10601 (or 10597 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 552361640 is about 23502.3751991155. The cubic root of 552361640 is about 820.4922881744.

The spelling of 552361640 in words is "five hundred fifty-two million, three hundred sixty-one thousand, six hundred forty".