552550040 has 64 divisors (see below), whose sum is σ = 1424001600. Its totient is φ = 189024768.

The previous prime is 552550013. The next prime is 552550049. The reversal of 552550040 is 40055255.

It is a junction number, because it is equal to n+sod(n) for n = 552549991 and 552550009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552550049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140582 + ... + 144458.

It is an arithmetic number, because the mean of its divisors is an integer number (22250025).

Almost surely, 2^552550040 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 552550040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712000800).

552550040 is an abundant number, since it is smaller than the sum of its proper divisors (871451560).

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

552550040 is a wasteful number, since it uses less digits than its factorization.

552550040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404 (or 4400 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 552550040 is about 23506.3829629316. The cubic root of 552550040 is about 820.5855623173.

The spelling of 552550040 in words is "five hundred fifty-two million, five hundred fifty thousand, forty".