53420569 has 2 divisors, whose sum is σ = 53420570. Its totient is φ = 53420568.

The previous prime is 53420561. The next prime is 53420603. The reversal of 53420569 is 96502435.

It is an a-pointer prime, because the next prime (53420603) can be obtained adding 53420569 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39841344 + 13579225 = 6312^2 + 3685^2 .

It is a cyclic number.

It is not a de Polignac number, because 53420569 - 2³ = 53420561 is a prime.

It is a super-2 number, since 2×53420569² = 5707514384567522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53420561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26710284 + 26710285.

It is an arithmetic number, because the mean of its divisors is an integer number (26710285).

Almost surely, 2^53420569 is an apocalyptic number.

It is an amenable number.

53420569 is a deficient number, since it is larger than the sum of its proper divisors (1).

53420569 is an equidigital number, since it uses as much as digits as its factorization.

53420569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 53420569 is about 7308.9376108980. The cubic root of 53420569 is about 376.6195295214.

The spelling of 53420569 in words is "fifty-three million, four hundred twenty thousand, five hundred sixty-nine".