51541402 has 12 divisors (see below), whose sum is σ = 84979818. Its totient is φ = 23427800.

The previous prime is 51541363. The next prime is 51541403. The reversal of 51541402 is 20414515.

51541402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50965321 + 576081 = 7139^2 + 759^2 .

It is a super-2 number, since 2×51541402² = 5313032240251208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (51541403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106249 + ... + 106732.

Almost surely, 2^51541402 is an apocalyptic number.

51541402 is a deficient number, since it is larger than the sum of its proper divisors (33438416).

51541402 is a wasteful number, since it uses less digits than its factorization.

51541402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213005 (or 212994 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 51541402 is about 7179.2340817109. The cubic root of 51541402 is about 372.1506163521.

Adding to 51541402 its reverse (20414515), we get a palindrome (71955917).

It can be divided in two parts, 5154 and 1402, that added together give a palindrome (6556).

The spelling of 51541402 in words is "fifty-one million, five hundred forty-one thousand, four hundred two".