51050940 has 24 divisors (see below), whose sum is σ = 142942800. Its totient is φ = 13613568.

The previous prime is 51050939. The next prime is 51050941. The reversal of 51050940 is 4905015.

It is an interprime number because it is at equal distance from previous prime (51050939) and next prime (51050941).

It is a self number, because there is not a number n which added to its sum of digits gives 51050940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51050941) 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, 425365 + ... + 425484.

It is an arithmetic number, because the mean of its divisors is an integer number (5955950).

Almost surely, 2^51050940 is an apocalyptic number.

It is an amenable number.

51050940 is an abundant number, since it is smaller than the sum of its proper divisors (91891860).

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

51050940 is a wasteful number, since it uses less digits than its factorization.

51050940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850861 (or 850859 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 51050940 is about 7144.9940517820. The cubic root of 51050940 is about 370.9664047386.

Adding to 51050940 its reverse (4905015), we get a palindrome (55955955).

The spelling of 51050940 in words is "fifty-one million, fifty thousand, nine hundred forty".