51637099 has 2 divisors, whose sum is σ = 51637100. Its totient is φ = 51637098.

The previous prime is 51637087. The next prime is 51637111. The reversal of 51637099 is 99073615.

It is a balanced prime because it is at equal distance from previous prime (51637087) and next prime (51637111).

It is a cyclic number.

It is not a de Polignac number, because 51637099 - 2¹⁵ = 51604331 is a prime.

It is not a weakly prime, because it can be changed into another prime (51637009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25818549 + 25818550.

It is an arithmetic number, because the mean of its divisors is an integer number (25818550).

Almost surely, 2^51637099 is an apocalyptic number.

51637099 is a deficient number, since it is larger than the sum of its proper divisors (1).

51637099 is an equidigital number, since it uses as much as digits as its factorization.

51637099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 51637099 is about 7185.8958383767. The cubic root of 51637099 is about 372.3807981576.

The spelling of 51637099 in words is "fifty-one million, six hundred thirty-seven thousand, ninety-nine".