51938042 has 8 divisors (see below), whose sum is σ = 83899956. Its totient is φ = 23971392.

The previous prime is 51938027. The next prime is 51938053. The reversal of 51938042 is 24083915.

It can be written as a sum of positive squares in 2 ways, for example, as 37957921 + 13980121 = 6161^2 + 3739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 998783 + ... + 998834.

Almost surely, 2^51938042 is an apocalyptic number.

51938042 is a deficient number, since it is larger than the sum of its proper divisors (31961914).

51938042 is a wasteful number, since it uses less digits than its factorization.

51938042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997632.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 51938042 is about 7206.8052561451. The cubic root of 51938042 is about 373.1028138641.

The spelling of 51938042 in words is "fifty-one million, nine hundred thirty-eight thousand, forty-two".