53430621 has 8 divisors (see below), whose sum is σ = 71525664. Its totient is φ = 35478000.

The previous prime is 53430599. The next prime is 53430647. The reversal of 53430621 is 12603435.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53430621 - 2⁵ = 53430589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53430591 and 53430600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53430661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34726 + ... + 36231.

It is an arithmetic number, because the mean of its divisors is an integer number (8940708).

Almost surely, 2^53430621 is an apocalyptic number.

It is an amenable number.

53430621 is a deficient number, since it is larger than the sum of its proper divisors (18095043).

53430621 is a wasteful number, since it uses less digits than its factorization.

53430621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71211.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 53430621 is about 7309.6252297912. The cubic root of 53430621 is about 376.6431505232.

The spelling of 53430621 in words is "fifty-three million, four hundred thirty thousand, six hundred twenty-one".