552549640 has 64 divisors (see below), whose sum is σ = 1385683200. Its totient is φ = 197065728.

The previous prime is 552549637. The next prime is 552549649. The reversal of 552549640 is 46945255.

It is a super-2 number, since 2×552549640² = 610622209328259200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 552549593 and 552549602.

It is not an unprimeable number, because it can be changed into a prime (552549649) 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, 8464 + ... + 34303.

It is an arithmetic number, because the mean of its divisors is an integer number (21651300).

Almost surely, 2^552549640 is an apocalyptic number.

It is an amenable number.

552549640 is an abundant number, since it is smaller than the sum of its proper divisors (833133560).

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

552549640 is a wasteful number, since it uses less digits than its factorization.

552549640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42814 (or 42810 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The square root of 552549640 is about 23506.3744546027. The cubic root of 552549640 is about 820.5853643055.

The spelling of 552549640 in words is "five hundred fifty-two million, five hundred forty-nine thousand, six hundred forty".