53404969 has 2 divisors, whose sum is σ = 53404970. Its totient is φ = 53404968.

The previous prime is 53404961. The next prime is 53404997. The reversal of 53404969 is 96940435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37699600 + 15705369 = 6140^2 + 3963^2 .

It is a cyclic number.

It is not a de Polignac number, because 53404969 - 2³ = 53404961 is a prime.

It is a super-2 number, since 2×53404969² = 5704181427781922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53404961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26702484 + 26702485.

It is an arithmetic number, because the mean of its divisors is an integer number (26702485).

Almost surely, 2^53404969 is an apocalyptic number.

It is an amenable number.

53404969 is a deficient number, since it is larger than the sum of its proper divisors (1).

53404969 is an equidigital number, since it uses as much as digits as its factorization.

53404969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 53404969 is about 7307.8703464142. The cubic root of 53404969 is about 376.5828655124.

The spelling of 53404969 in words is "fifty-three million, four hundred four thousand, nine hundred sixty-nine".