51773942 has 16 divisors (see below), whose sum is σ = 89705232. Its totient is φ = 22149120.

The previous prime is 51773929. The next prime is 51773947. The reversal of 51773942 is 24937715.

It is a junction number, because it is equal to n+sod(n) for n = 51773896 and 51773905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51773947) 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, 68843 + ... + 69590.

It is an arithmetic number, because the mean of its divisors is an integer number (5606577).

Almost surely, 2^51773942 is an apocalyptic number.

51773942 is a deficient number, since it is larger than the sum of its proper divisors (37931290).

51773942 is a wasteful number, since it uses less digits than its factorization.

51773942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138463.

The product of its digits is 52920, while the sum is 38.

The square root of 51773942 is about 7195.4111765764. The cubic root of 51773942 is about 372.7094556443.

It can be divided in two parts, 5177 and 3942, that added together give a palindrome (9119).

The spelling of 51773942 in words is "fifty-one million, seven hundred seventy-three thousand, nine hundred forty-two".