51227624 has 64 divisors (see below), whose sum is σ = 118333440. Its totient is φ = 20306880.

The previous prime is 51227623. The next prime is 51227633. The reversal of 51227624 is 42672215.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51227623) 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, 39287 + ... + 40569.

It is an arithmetic number, because the mean of its divisors is an integer number (1848960).

Almost surely, 2^51227624 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 51227624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59166720).

51227624 is an abundant number, since it is smaller than the sum of its proper divisors (67105816).

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

51227624 is a wasteful number, since it uses less digits than its factorization.

51227624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350 (or 1346 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 51227624 is about 7157.3475533888. The cubic root of 51227624 is about 371.3938755418.

Adding to 51227624 its reverse (42672215), we get a palindrome (93899839).

The spelling of 51227624 in words is "fifty-one million, two hundred twenty-seven thousand, six hundred twenty-four".