51898229 has 12 divisors (see below), whose sum is σ = 55961964. Its totient is φ = 47962752.

The previous prime is 51898219. The next prime is 51898241. The reversal of 51898229 is 92289815.

It can be written as a sum of positive squares in 2 ways, for example, as 42120100 + 9778129 = 6490^2 + 3127^2 .

It is not a de Polignac number, because 51898229 - 2¹² = 51894133 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51898229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51898219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58739 + ... + 59615.

It is an arithmetic number, because the mean of its divisors is an integer number (4663497).

Almost surely, 2^51898229 is an apocalyptic number.

51898229 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

51898229 is a deficient number, since it is larger than the sum of its proper divisors (4063735).

51898229 is an equidigital number, since it uses as much as digits as its factorization.

51898229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012 (or 953 counting only the distinct ones).

The product of its digits is 103680, while the sum is 44.

The square root of 51898229 is about 7204.0425456823. The cubic root of 51898229 is about 373.0074557612.

The spelling of 51898229 in words is "fifty-one million, eight hundred ninety-eight thousand, two hundred twenty-nine".