53630819 has 4 divisors (see below), whose sum is σ = 58506360. Its totient is φ = 48755280.

The previous prime is 53630803. The next prime is 53630827. The reversal of 53630819 is 91803635.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53630819 - 2⁴ = 53630803 is a prime.

It is a super-2 number, since 2×53630819² = 5752529493221522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53630839) 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, 2437754 + ... + 2437775.

It is an arithmetic number, because the mean of its divisors is an integer number (14626590).

Almost surely, 2^53630819 is an apocalyptic number.

53630819 is a deficient number, since it is larger than the sum of its proper divisors (4875541).

53630819 is a wasteful number, since it uses less digits than its factorization.

53630819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4875540.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 53630819 is about 7323.3065619295. The cubic root of 53630819 is about 377.1129761529.

The spelling of 53630819 in words is "fifty-three million, six hundred thirty thousand, eight hundred nineteen".