52403449 has 16 divisors (see below), whose sum is σ = 61632000. Its totient is φ = 43625664.

The previous prime is 52403443. The next prime is 52403473. The reversal of 52403449 is 94430425.

52403449 = T₂₂ + T₂₃ + ... + T₆₇₉.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52403449 - 2⁷ = 52403321 is a prime.

It is a super-2 number, since 2×52403449² = 5492242934191202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52403449.

It is not an unprimeable number, because it can be changed into a prime (52403443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48487 + ... + 49555.

It is an arithmetic number, because the mean of its divisors is an integer number (3852000).

Almost surely, 2^52403449 is an apocalyptic number.

It is an amenable number.

52403449 is a deficient number, since it is larger than the sum of its proper divisors (9228551).

52403449 is a wasteful number, since it uses less digits than its factorization.

52403449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 52403449 is about 7239.0226550274. The cubic root of 52403449 is about 374.2139362428.

The spelling of 52403449 in words is "fifty-two million, four hundred three thousand, four hundred forty-nine".