51098863 has 2 divisors, whose sum is σ = 51098864. Its totient is φ = 51098862.

The previous prime is 51098857. The next prime is 51098869. The reversal of 51098863 is 36889015.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (51098857) and next prime (51098869).

It is a cyclic number.

It is not a de Polignac number, because 51098863 - 2⁹ = 51098351 is a prime.

It is a super-2 number, since 2×51098863² = 5222187599785538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51098869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25549431 + 25549432.

It is an arithmetic number, because the mean of its divisors is an integer number (25549432).

Almost surely, 2^51098863 is an apocalyptic number.

51098863 is a deficient number, since it is larger than the sum of its proper divisors (1).

51098863 is an equidigital number, since it uses as much as digits as its factorization.

51098863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 51098863 is about 7148.3468718299. The cubic root of 51098863 is about 371.0824474145.

The spelling of 51098863 in words is "fifty-one million, ninety-eight thousand, eight hundred sixty-three".