53120449 has 2 divisors, whose sum is σ = 53120450. Its totient is φ = 53120448.

The previous prime is 53120399. The next prime is 53120503. The reversal of 53120449 is 94402135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40870449 + 12250000 = 6393^2 + 3500^2 .

It is a cyclic number.

It is not a de Polignac number, because 53120449 - 2¹⁵ = 53087681 is a prime.

It is equal to p_3176821 and since 53120449 and 3176821 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (53120549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26560224 + 26560225.

It is an arithmetic number, because the mean of its divisors is an integer number (26560225).

Almost surely, 2^53120449 is an apocalyptic number.

It is an amenable number.

53120449 is a deficient number, since it is larger than the sum of its proper divisors (1).

53120449 is an equidigital number, since it uses as much as digits as its factorization.

53120449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 53120449 is about 7288.3776658458. The cubic root of 53120449 is about 375.9129141343.

The spelling of 53120449 in words is "fifty-three million, one hundred twenty thousand, four hundred forty-nine".