53267661 has 12 divisors (see below), whose sum is σ = 77014080. Its totient is φ = 35478600.

The previous prime is 53267653. The next prime is 53267663. The reversal of 53267661 is 16676235.

53267661 is a `hidden beast` number, since 532 + 67 + 6 + 61 = 666.

It is not a de Polignac number, because 53267661 - 2³ = 53267653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53267663) 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, 11020 + ... + 15098.

It is an arithmetic number, because the mean of its divisors is an integer number (6417840).

Almost surely, 2^53267661 is an apocalyptic number.

It is an amenable number.

53267661 is a deficient number, since it is larger than the sum of its proper divisors (23746419).

53267661 is a wasteful number, since it uses less digits than its factorization.

53267661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5536 (or 5533 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 53267661 is about 7298.4697711233. The cubic root of 53267661 is about 376.2598480147.

The spelling of 53267661 in words is "fifty-three million, two hundred sixty-seven thousand, six hundred sixty-one".