51266424 has 64 divisors (see below), whose sum is σ = 148055040. Its totient is φ = 14620160.

The previous prime is 51266419. The next prime is 51266429. The reversal of 51266424 is 42466215.

It is an interprime number because it is at equal distance from previous prime (51266419) and next prime (51266429).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51266391 and 51266400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51266429) 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, 1224 + ... + 10199.

It is an arithmetic number, because the mean of its divisors is an integer number (2313360).

Almost surely, 2^51266424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51266424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74027520).

51266424 is an abundant number, since it is smaller than the sum of its proper divisors (96788616).

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

51266424 is a wasteful number, since it uses less digits than its factorization.

51266424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11460 (or 11456 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 51266424 is about 7160.0575416682. The cubic root of 51266424 is about 371.4876169304.

The spelling of 51266424 in words is "fifty-one million, two hundred sixty-six thousand, four hundred twenty-four".