53610621 has 4 divisors (see below), whose sum is σ = 71480832. Its totient is φ = 35740412.

The previous prime is 53610607. The next prime is 53610629. The reversal of 53610621 is 12601635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53610621 - 2¹⁰ = 53609597 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53610591 and 53610600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53610629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8935101 + ... + 8935106.

It is an arithmetic number, because the mean of its divisors is an integer number (17870208).

Almost surely, 2^53610621 is an apocalyptic number.

It is an amenable number.

53610621 is a deficient number, since it is larger than the sum of its proper divisors (17870211).

53610621 is a wasteful number, since it uses less digits than its factorization.

53610621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17870210.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 53610621 is about 7321.9274101837. The cubic root of 53610621 is about 377.0656284746.

The spelling of 53610621 in words is "fifty-three million, six hundred ten thousand, six hundred twenty-one".