43020053 has 2 divisors, whose sum is σ = 43020054. Its totient is φ = 43020052.

The previous prime is 43020049. The next prime is 43020071. The reversal of 43020053 is 35002034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38850289 + 4169764 = 6233^2 + 2042^2 .

It is a cyclic number.

It is not a de Polignac number, because 43020053 - 2² = 43020049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43020023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21510026 + 21510027.

It is an arithmetic number, because the mean of its divisors is an integer number (21510027).

Almost surely, 2^43020053 is an apocalyptic number.

It is an amenable number.

43020053 is a deficient number, since it is larger than the sum of its proper divisors (1).

43020053 is an equidigital number, since it uses as much as digits as its factorization.

43020053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 43020053 is about 6558.9673729940. The cubic root of 43020053 is about 350.3942577621.

Adding to 43020053 its reverse (35002034), we get a palindrome (78022087).

The spelling of 43020053 in words is "forty-three million, twenty thousand, fifty-three".