53320489 has 4 divisors (see below), whose sum is σ = 53491156. Its totient is φ = 53149824.

The previous prime is 53320481. The next prime is 53320493. The reversal of 53320489 is 98402335.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98402335 = 5 ⋅19680467.

It can be written as a sum of positive squares in 2 ways, for example, as 8323225 + 44997264 = 2885^2 + 6708^2 .

It is a cyclic number.

It is not a de Polignac number, because 53320489 - 2³ = 53320481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53320481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84864 + ... + 85489.

It is an arithmetic number, because the mean of its divisors is an integer number (13372789).

Almost surely, 2^53320489 is an apocalyptic number.

It is an amenable number.

53320489 is a deficient number, since it is larger than the sum of its proper divisors (170667).

53320489 is a wasteful number, since it uses less digits than its factorization.

53320489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170666.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 53320489 is about 7302.0879890618. The cubic root of 53320489 is about 376.3841916752.

The spelling of 53320489 in words is "fifty-three million, three hundred twenty thousand, four hundred eighty-nine".