553068261 has 12 divisors (see below), whose sum is σ = 800131020. Its totient is φ = 368133120.

The previous prime is 553068253. The next prime is 553068277. The reversal of 553068261 is 162860355.

553068261 is a `hidden beast` number, since 5 + 530 + 68 + 2 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 312228900 + 240839361 = 17670^2 + 15519^2 .

It is not a de Polignac number, because 553068261 - 2³ = 553068253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553068211) 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, 42166 + ... + 53703.

It is an arithmetic number, because the mean of its divisors is an integer number (66677585).

Almost surely, 2^553068261 is an apocalyptic number.

It is an amenable number.

553068261 is a deficient number, since it is larger than the sum of its proper divisors (247062759).

553068261 is a wasteful number, since it uses less digits than its factorization.

553068261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96516 (or 96513 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 553068261 is about 23517.4033643172. The cubic root of 553068261 is about 820.8420167965.

The spelling of 553068261 in words is "five hundred fifty-three million, sixty-eight thousand, two hundred sixty-one".