51011402 has 16 divisors (see below), whose sum is σ = 83010312. Its totient is φ = 23370240.

The previous prime is 51011383. The next prime is 51011413. The reversal of 51011402 is 20411015.

51011402 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 4 ways, for example, as 20529961 + 30481441 = 4531^2 + 5521^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3599 + ... + 10722.

Almost surely, 2^51011402 is an apocalyptic number.

51011402 is a deficient number, since it is larger than the sum of its proper divisors (31998910).

51011402 is a wasteful number, since it uses less digits than its factorization.

51011402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14473.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 51011402 is about 7142.2266836051. The cubic root of 51011402 is about 370.8706111525.

Adding to 51011402 its reverse (20411015), we get a palindrome (71422417).

The spelling of 51011402 in words is "fifty-one million, eleven thousand, four hundred two".