51614240 has 24 divisors (see below), whose sum is σ = 121939020. Its totient is φ = 20645632.

The previous prime is 51614239. The next prime is 51614243. The reversal of 51614240 is 4241615.

It can be written as a sum of positive squares in 2 ways, for example, as 49168144 + 2446096 = 7012^2 + 1564^2 .

It is not an unprimeable number, because it can be changed into a prime (51614243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161135 + ... + 161454.

Almost surely, 2^51614240 is an apocalyptic number.

It is an amenable number.

51614240 is an abundant number, since it is smaller than the sum of its proper divisors (70324780).

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

51614240 is a wasteful number, since it uses less digits than its factorization.

51614240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322604 (or 322596 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 51614240 is about 7184.3051160150. The cubic root of 51614240 is about 372.3258408418.

Adding to 51614240 its reverse (4241615), we get a palindrome (55855855).

The spelling of 51614240 in words is "fifty-one million, six hundred fourteen thousand, two hundred forty".