53020550 has 24 divisors (see below), whose sum is σ = 107584632. Its totient is φ = 19280000.

The previous prime is 53020549. The next prime is 53020553. The reversal of 53020550 is 5502035.

It is a super-2 number, since 2×53020550² = 5622357444605000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53020553) 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, 47651 + ... + 48750.

It is an arithmetic number, because the mean of its divisors is an integer number (4482693).

Almost surely, 2^53020550 is an apocalyptic number.

53020550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53020550 is an abundant number, since it is smaller than the sum of its proper divisors (54564082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53020550 is a wasteful number, since it uses less digits than its factorization.

53020550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96424 (or 96419 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 53020550 is about 7281.5211322910. The cubic root of 53020550 is about 375.6771173704.

Adding to 53020550 its reverse (5502035), we get a palindrome (58522585).

The spelling of 53020550 in words is "fifty-three million, twenty thousand, five hundred fifty".