53161434 has 40 divisors (see below), whose sum is σ = 119724660. Its totient is φ = 17630784.

The previous prime is 53161429. The next prime is 53161481. The reversal of 53161434 is 43416135.

It can be written as a sum of positive squares in 2 ways, for example, as 43520409 + 9641025 = 6597^2 + 3105^2 .

It is a super-2 number, since 2×53161434² = 5652276129872712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 53161398 and 53161407.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36382 + ... + 37814.

Almost surely, 2^53161434 is an apocalyptic number.

53161434 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 53161434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59862330).

53161434 is an abundant number, since it is smaller than the sum of its proper divisors (66563226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53161434 is a wasteful number, since it uses less digits than its factorization.

53161434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1667 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 53161434 is about 7291.1887919598. The cubic root of 53161434 is about 376.0095676228.

Adding to 53161434 its reverse (43416135), we get a palindrome (96577569).

The spelling of 53161434 in words is "fifty-three million, one hundred sixty-one thousand, four hundred thirty-four".