51098369 has 16 divisors (see below), whose sum is σ = 60724608. Its totient is φ = 42083712.

The previous prime is 51098363. The next prime is 51098401. The reversal of 51098369 is 96389015.

It is a cyclic number.

It is not a de Polignac number, because 51098369 - 2¹² = 51094273 is a prime.

It is a super-2 number, since 2×51098369² = 5222086628920322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51098363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20309 + ... + 22685.

It is an arithmetic number, because the mean of its divisors is an integer number (3795288).

Almost surely, 2^51098369 is an apocalyptic number.

It is an amenable number.

51098369 is a deficient number, since it is larger than the sum of its proper divisors (9626239).

51098369 is a wasteful number, since it uses less digits than its factorization.

51098369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 51098369 is about 7148.3123183028. The cubic root of 51098369 is about 371.0812515932.

The spelling of 51098369 in words is "fifty-one million, ninety-eight thousand, three hundred sixty-nine".