52891431 has 8 divisors (see below), whose sum is σ = 70621824. Its totient is φ = 35211000.

The previous prime is 52891411. The next prime is 52891451. The reversal of 52891431 is 13419825.

It is an interprime number because it is at equal distance from previous prime (52891411) and next prime (52891451).

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

It is not a de Polignac number, because 52891431 - 2⁶ = 52891367 is a prime.

It is a super-2 number, since 2×52891431² = 5595006946455522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 52891392 and 52891401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52891411) 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, 9945 + ... + 14306.

It is an arithmetic number, because the mean of its divisors is an integer number (8827728).

Almost surely, 2^52891431 is an apocalyptic number.

52891431 is a deficient number, since it is larger than the sum of its proper divisors (17730393).

52891431 is a wasteful number, since it uses less digits than its factorization.

52891431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24981.

The product of its digits is 8640, while the sum is 33.

The square root of 52891431 is about 7272.6495171980. The cubic root of 52891431 is about 375.3719119177.

The spelling of 52891431 in words is "fifty-two million, eight hundred ninety-one thousand, four hundred thirty-one".