53289431 has 4 divisors (see below), whose sum is σ = 57388632. Its totient is φ = 49190232.

The previous prime is 53289409. The next prime is 53289461. The reversal of 53289431 is 13498235.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13498235 = 5 ⋅2699647.

It is not a de Polignac number, because 53289431 - 2²² = 49095127 is a prime.

It is a super-2 number, since 2×53289431² = 5679526912607522, 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 = 53289391 and 53289400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53289461) 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, 2049581 + ... + 2049606.

It is an arithmetic number, because the mean of its divisors is an integer number (14347158).

Almost surely, 2^53289431 is an apocalyptic number.

53289431 is a deficient number, since it is larger than the sum of its proper divisors (4099201).

53289431 is a wasteful number, since it uses less digits than its factorization.

53289431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099200.

The product of its digits is 25920, while the sum is 35.

The square root of 53289431 is about 7299.9610272932. The cubic root of 53289431 is about 376.3110990058.

The spelling of 53289431 in words is "fifty-three million, two hundred eighty-nine thousand, four hundred thirty-one".