53610561 has 12 divisors (see below), whose sum is σ = 77626900. Its totient is φ = 35652960.

The previous prime is 53610553. The next prime is 53610569. The reversal of 53610561 is 16501635.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53610553) and next prime (53610569).

It can be written as a sum of positive squares in 2 ways, for example, as 21902400 + 31708161 = 4680^2 + 5631^2 .

It is not a de Polignac number, because 53610561 - 2³ = 53610553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53610569) 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, 3286 + ... + 10863.

Almost surely, 2^53610561 is an apocalyptic number.

It is an amenable number.

53610561 is a deficient number, since it is larger than the sum of its proper divisors (24016339).

53610561 is a wasteful number, since it uses less digits than its factorization.

53610561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14576 (or 14573 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 53610561 is about 7321.9233129008. The cubic root of 53610561 is about 377.0654878063.

The spelling of 53610561 in words is "fifty-three million, six hundred ten thousand, five hundred sixty-one".