552164781 has 12 divisors (see below), whose sum is σ = 856419072. Its totient is φ = 315522648.

The previous prime is 552164779. The next prime is 552164783. The reversal of 552164781 is 187461255.

It is an interprime number because it is at equal distance from previous prime (552164779) and next prime (552164783).

It is not a de Polignac number, because 552164781 - 2¹ = 552164779 is a prime.

It is a super-2 number, since 2×552164781² = 609771890753555922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552164783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1877965 + ... + 1878258.

It is an arithmetic number, because the mean of its divisors is an integer number (71368256).

Almost surely, 2^552164781 is an apocalyptic number.

It is an amenable number.

552164781 is a deficient number, since it is larger than the sum of its proper divisors (304254291).

552164781 is a wasteful number, since it uses less digits than its factorization.

552164781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756240 (or 3756233 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 552164781 is about 23498.1867598332. The cubic root of 552164781 is about 820.3948034398.

The spelling of 552164781 in words is "five hundred fifty-two million, one hundred sixty-four thousand, seven hundred eighty-one".