552155940 has 480 divisors, whose sum is σ = 2166151680. Its totient is φ = 114960384.

The previous prime is 552155927. The next prime is 552155951. The reversal of 552155940 is 49551255.

552155940 is a `hidden beast` number, since 5 + 52 + 15 + 594 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 552155895 and 552155904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 7563744 + ... + 7563816.

It is an arithmetic number, because the mean of its divisors is an integer number (4512816).

Almost surely, 2^552155940 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 552155940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1083075840).

552155940 is an abundant number, since it is smaller than the sum of its proper divisors (1613995740).

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

552155940 is a wasteful number, since it uses less digits than its factorization.

552155940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The square root of 552155940 is about 23497.9986381819. The cubic root of 552155940 is about 820.3904248259.

The spelling of 552155940 in words is "five hundred fifty-two million, one hundred fifty-five thousand, nine hundred forty".