53045431 has 4 divisors (see below), whose sum is σ = 54339264. Its totient is φ = 51751600.

The previous prime is 53045411. The next prime is 53045453. The reversal of 53045431 is 13454035.

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 53045431 - 2⁹ = 53044919 is a prime.

It is a super-2 number, since 2×53045431² = 5627635499951522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53045396 and 53045405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53045401) 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, 646855 + ... + 646936.

It is an arithmetic number, because the mean of its divisors is an integer number (13584816).

Almost surely, 2^53045431 is an apocalyptic number.

53045431 is a deficient number, since it is larger than the sum of its proper divisors (1293833).

53045431 is a wasteful number, since it uses less digits than its factorization.

53045431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293832.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 53045431 is about 7283.2294348043. The cubic root of 53045431 is about 375.7358729574.

Adding to 53045431 its reverse (13454035), we get a palindrome (66499466).

The spelling of 53045431 in words is "fifty-three million, forty-five thousand, four hundred thirty-one".