51134430 has 32 divisors (see below), whose sum is σ = 122923008. Its totient is φ = 13613600.

The previous prime is 51134417. The next prime is 51134431. The reversal of 51134430 is 3443115.

It is a super-2 number, since 2×51134430² = 5229459862849800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51134397 and 51134406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51134431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26395 + ... + 28265.

It is an arithmetic number, because the mean of its divisors is an integer number (3841344).

Almost surely, 2^51134430 is an apocalyptic number.

51134430 is an abundant number, since it is smaller than the sum of its proper divisors (71788578).

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

51134430 is a wasteful number, since it uses less digits than its factorization.

51134430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 51134430 is about 7150.8342170687. The cubic root of 51134430 is about 371.1685238790.

Adding to 51134430 its reverse (3443115), we get a palindrome (54577545).

The spelling of 51134430 in words is "fifty-one million, one hundred thirty-four thousand, four hundred thirty".