51937898 has 16 divisors (see below), whose sum is σ = 82562760. Its totient is φ = 24460800.

The previous prime is 51937891. The next prime is 51937903. The reversal of 51937898 is 89873915.

It can be written as a sum of positive squares in 4 ways, for example, as 12837889 + 39100009 = 3583^2 + 6253^2 .

It is not an unprimeable number, because it can be changed into a prime (51937891) 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, 8543 + ... + 13298.

Almost surely, 2^51937898 is an apocalyptic number.

51937898 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

51937898 is a deficient number, since it is larger than the sum of its proper divisors (30624862).

51937898 is a wasteful number, since it uses less digits than its factorization.

51937898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21913.

The product of its digits is 544320, while the sum is 50.

The square root of 51937898 is about 7206.7952655810. The cubic root of 51937898 is about 373.1024690504.

The spelling of 51937898 in words is "fifty-one million, nine hundred thirty-seven thousand, eight hundred ninety-eight".