53642351 has 4 divisors (see below), whose sum is σ = 61305552. Its totient is φ = 45979152.

The previous prime is 53642333. The next prime is 53642353. The reversal of 53642351 is 15324635.

53642351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53642351 - 2⁶ = 53642287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53642353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3831590 + ... + 3831603.

It is an arithmetic number, because the mean of its divisors is an integer number (15326388).

Almost surely, 2^53642351 is an apocalyptic number.

53642351 is a deficient number, since it is larger than the sum of its proper divisors (7663201).

53642351 is an equidigital number, since it uses as much as digits as its factorization.

53642351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7663200.

The product of its digits is 10800, while the sum is 29.

The square root of 53642351 is about 7324.0938688687. The cubic root of 53642351 is about 377.1400038660.

Adding to 53642351 its reverse (15324635), we get a palindrome (68966986).

The spelling of 53642351 in words is "fifty-three million, six hundred forty-two thousand, three hundred fifty-one".