552780766 has 4 divisors (see below), whose sum is σ = 829171152. Its totient is φ = 276390382.

The previous prime is 552780749. The next prime is 552780769. The reversal of 552780766 is 667087255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 667087255 = 5 ⋅133417451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552780769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138195190 + ... + 138195193.

It is an arithmetic number, because the mean of its divisors is an integer number (207292788).

Almost surely, 2^552780766 is an apocalyptic number.

552780766 is a deficient number, since it is larger than the sum of its proper divisors (276390386).

552780766 is a wasteful number, since it uses less digits than its factorization.

552780766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276390385.

The product of its (nonzero) digits is 705600, while the sum is 46.

The square root of 552780766 is about 23511.2901815277. The cubic root of 552780766 is about 820.6997625793.

The spelling of 552780766 in words is "five hundred fifty-two million, seven hundred eighty thousand, seven hundred sixty-six".