51224150 has 24 divisors (see below), whose sum is σ = 98565120. Its totient is φ = 19782560.

The previous prime is 51224101. The next prime is 51224161. The reversal of 51224150 is 5142215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16214 + ... + 19113.

It is an arithmetic number, because the mean of its divisors is an integer number (4106880).

Almost surely, 2^51224150 is an apocalyptic number.

51224150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51224150 is a deficient number, since it is larger than the sum of its proper divisors (47340970).

51224150 is a wasteful number, since it uses less digits than its factorization.

51224150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35368 (or 35363 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 51224150 is about 7157.1048616043. The cubic root of 51224150 is about 371.3854799967.

Adding to 51224150 its reverse (5142215), we get a palindrome (56366365).

The spelling of 51224150 in words is "fifty-one million, two hundred twenty-four thousand, one hundred fifty".