53455431 has 8 divisors (see below), whose sum is σ = 73012464. Its totient is φ = 34767680.

The previous prime is 53455397. The next prime is 53455433. The reversal of 53455431 is 13455435.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53455431 is a prime.

It is a super-2 number, since 2×53455431² = 5714966206791522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53455433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217176 + ... + 217421.

It is an arithmetic number, because the mean of its divisors is an integer number (9126558).

Almost surely, 2^53455431 is an apocalyptic number.

53455431 is a deficient number, since it is larger than the sum of its proper divisors (19557033).

53455431 is a wasteful number, since it uses less digits than its factorization.

53455431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434641.

The product of its digits is 18000, while the sum is 30.

The square root of 53455431 is about 7311.3221102616. The cubic root of 53455431 is about 376.7014383890.

The spelling of 53455431 in words is "fifty-three million, four hundred fifty-five thousand, four hundred thirty-one".