53100621 has 24 divisors (see below), whose sum is σ = 88445760. Its totient is φ = 30070656.

The previous prime is 53100601. The next prime is 53100637. The reversal of 53100621 is 12600135.

It is not a de Polignac number, because 53100621 - 2⁵ = 53100589 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53100594 and 53100603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53100601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3390 + ... + 10848.

It is an arithmetic number, because the mean of its divisors is an integer number (3685240).

Almost surely, 2^53100621 is an apocalyptic number.

It is an amenable number.

53100621 is a deficient number, since it is larger than the sum of its proper divisors (35345139).

53100621 is a wasteful number, since it uses less digits than its factorization.

53100621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7585 (or 7582 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 53100621 is about 7287.0172910458. The cubic root of 53100621 is about 375.8661366128.

Adding to 53100621 its reverse (12600135), we get a palindrome (65700756).

The spelling of 53100621 in words is "fifty-three million, one hundred thousand, six hundred twenty-one".