51411423 has 32 divisors (see below), whose sum is σ = 81559552. Its totient is φ = 28188000.

The previous prime is 51411419. The next prime is 51411427. The reversal of 51411423 is 32411415.

It is an interprime number because it is at equal distance from previous prime (51411419) and next prime (51411427).

It is not a de Polignac number, because 51411423 - 2² = 51411419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51411423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51411427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98040 + ... + 98562.

It is an arithmetic number, because the mean of its divisors is an integer number (2548736).

Almost surely, 2^51411423 is an apocalyptic number.

51411423 is a deficient number, since it is larger than the sum of its proper divisors (30148129).

51411423 is a wasteful number, since it uses less digits than its factorization.

51411423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715.

The product of its digits is 480, while the sum is 21.

The square root of 51411423 is about 7170.1759392640. The cubic root of 51411423 is about 371.8375186478.

Adding to 51411423 its reverse (32411415), we get a palindrome (83822838).

The spelling of 51411423 in words is "fifty-one million, four hundred eleven thousand, four hundred twenty-three".