53145434 has 8 divisors (see below), whose sum is σ = 84407508. Its totient is φ = 25009600.

The previous prime is 53145409. The next prime is 53145437. The reversal of 53145434 is 43454135.

It can be written as a sum of positive squares in 2 ways, for example, as 47128225 + 6017209 = 6865^2 + 2453^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 53145397 and 53145406.

It is not an unprimeable number, because it can be changed into a prime (53145437) 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, 781517 + ... + 781584.

Almost surely, 2^53145434 is an apocalyptic number.

53145434 is a deficient number, since it is larger than the sum of its proper divisors (31262074).

53145434 is a wasteful number, since it uses less digits than its factorization.

53145434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563120.

The product of its digits is 14400, while the sum is 29.

The square root of 53145434 is about 7290.0914946247. The cubic root of 53145434 is about 375.9718412970.

Adding to 53145434 its reverse (43454135), we get a palindrome (96599569).

The spelling of 53145434 in words is "fifty-three million, one hundred forty-five thousand, four hundred thirty-four".