53642453 has 4 divisors (see below), whose sum is σ = 56465760. Its totient is φ = 50819148.

The previous prime is 53642443. The next prime is 53642461. The reversal of 53642453 is 35424635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35424635 = 5 ⋅7084927.

It is not a de Polignac number, because 53642453 - 2⁶ = 53642389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53642443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1411625 + ... + 1411662.

It is an arithmetic number, because the mean of its divisors is an integer number (14116440).

Almost surely, 2^53642453 is an apocalyptic number.

It is an amenable number.

53642453 is a deficient number, since it is larger than the sum of its proper divisors (2823307).

53642453 is a wasteful number, since it uses less digits than its factorization.

53642453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823306.

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

The square root of 53642453 is about 7324.1008321841. The cubic root of 53642453 is about 377.1402429076.

The spelling of 53642453 in words is "fifty-three million, six hundred forty-two thousand, four hundred fifty-three".