51823430 has 16 divisors (see below), whose sum is σ = 94561344. Its totient is φ = 20445120.

The previous prime is 51823427. The next prime is 51823433. The reversal of 51823430 is 3432815.

It is an interprime number because it is at equal distance from previous prime (51823427) and next prime (51823433).

It is a self number, because there is not a number n which added to its sum of digits gives 51823430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51823433) 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, 34766 + ... + 36225.

It is an arithmetic number, because the mean of its divisors is an integer number (5910084).

Almost surely, 2^51823430 is an apocalyptic number.

51823430 is a deficient number, since it is larger than the sum of its proper divisors (42737914).

51823430 is a wasteful number, since it uses less digits than its factorization.

51823430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71071.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 51823430 is about 7198.8492135896. The cubic root of 51823430 is about 372.8281689789.

The spelling of 51823430 in words is "fifty-one million, eight hundred twenty-three thousand, four hundred thirty".