51898324 has 6 divisors (see below), whose sum is σ = 90822074. Its totient is φ = 25949160.

The previous prime is 51898321. The next prime is 51898369. The reversal of 51898324 is 42389815.

It can be written as a sum of positive squares in only one way, i.e., 49280400 + 2617924 = 7020^2 + 1618^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51898321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6487287 + ... + 6487294.

Almost surely, 2^51898324 is an apocalyptic number.

It is an amenable number.

51898324 is a deficient number, since it is larger than the sum of its proper divisors (38923750).

51898324 is a wasteful number, since it uses less digits than its factorization.

51898324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12974585 (or 12974583 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 51898324 is about 7204.0491391994. The cubic root of 51898324 is about 373.0076833585.

The spelling of 51898324 in words is "fifty-one million, eight hundred ninety-eight thousand, three hundred twenty-four".