53021835 has 12 divisors (see below), whose sum is σ = 91904592. Its totient is φ = 28278288.

The previous prime is 53021833. The next prime is 53021863. The reversal of 53021835 is 53812035.

It is not a de Polignac number, because 53021835 - 2¹ = 53021833 is a prime.

It is a super-2 number, since 2×53021835² = 5622629973534450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53021799 and 53021808.

It is not an unprimeable number, because it can be changed into a prime (53021833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 589087 + ... + 589176.

It is an arithmetic number, because the mean of its divisors is an integer number (7658716).

Almost surely, 2^53021835 is an apocalyptic number.

53021835 is a deficient number, since it is larger than the sum of its proper divisors (38882757).

53021835 is a wasteful number, since it uses less digits than its factorization.

53021835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178274 (or 1178271 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 53021835 is about 7281.6093688140. The cubic root of 53021835 is about 375.6801523018.

The spelling of 53021835 in words is "fifty-three million, twenty-one thousand, eight hundred thirty-five".