51144016 has 40 divisors (see below), whose sum is σ = 123545664. Its totient is φ = 19925760.

The previous prime is 51144013. The next prime is 51144061. The reversal of 51144016 is 61044115.

It is a super-3 number, since 3×51144016³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51144013) 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, 19525 + ... + 21988.

Almost surely, 2^51144016 is an apocalyptic number.

51144016 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51144016 is an abundant number, since it is smaller than the sum of its proper divisors (72401648).

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

51144016 is a wasteful number, since it uses less digits than its factorization.

51144016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41539 (or 41533 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 51144016 is about 7151.5044571055. The cubic root of 51144016 is about 371.1917163357.

Subtracting 51144016 from its reverse (61044115), we obtain a palindrome (9900099).

The spelling of 51144016 in words is "fifty-one million, one hundred forty-four thousand, sixteen".