53425643 has 4 divisors (see below), whose sum is σ = 54433728. Its totient is φ = 52417560.

The previous prime is 53425637. The next prime is 53425661. The reversal of 53425643 is 34652435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34652435 = 5 ⋅6930487.

It is a cyclic number.

It is not a de Polignac number, because 53425643 - 2⁶ = 53425579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53425613) 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 3 ways as a sum of consecutive naturals, for example, 503963 + ... + 504068.

It is an arithmetic number, because the mean of its divisors is an integer number (13608432).

Almost surely, 2^53425643 is an apocalyptic number.

53425643 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

53425643 is a deficient number, since it is larger than the sum of its proper divisors (1008085).

53425643 is a wasteful number, since it uses less digits than its factorization.

53425643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008084.

The product of its digits is 43200, while the sum is 32.

The square root of 53425643 is about 7309.2847119263. The cubic root of 53425643 is about 376.6314531869.

The spelling of 53425643 in words is "fifty-three million, four hundred twenty-five thousand, six hundred forty-three".