53450639 has 8 divisors (see below), whose sum is σ = 58386432. Its totient is φ = 48527640.

The previous prime is 53450623. The next prime is 53450651. The reversal of 53450639 is 93605435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53450639 - 2⁴ = 53450623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53450599 and 53450608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53450039) 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 7 ways as a sum of consecutive naturals, for example, 6962 + ... + 12464.

It is an arithmetic number, because the mean of its divisors is an integer number (7298304).

Almost surely, 2^53450639 is an apocalyptic number.

53450639 is a deficient number, since it is larger than the sum of its proper divisors (4935793).

53450639 is a wasteful number, since it uses less digits than its factorization.

53450639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6397.

The product of its (nonzero) digits is 48600, while the sum is 35.

The square root of 53450639 is about 7310.9943920099. The cubic root of 53450639 is about 376.6901816142.

The spelling of 53450639 in words is "fifty-three million, four hundred fifty thousand, six hundred thirty-nine".