51404156 has 6 divisors (see below), whose sum is σ = 89957280. Its totient is φ = 25702076.

The previous prime is 51404099. The next prime is 51404159. The reversal of 51404156 is 65140415.

51404156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51404159) 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 as a sum of consecutive naturals, namely, 6425516 + ... + 6425523.

It is an arithmetic number, because the mean of its divisors is an integer number (14992880).

Almost surely, 2^51404156 is an apocalyptic number.

It is an amenable number.

51404156 is a deficient number, since it is larger than the sum of its proper divisors (38553124).

51404156 is a wasteful number, since it uses less digits than its factorization.

51404156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12851043 (or 12851041 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 51404156 is about 7169.6691694945. The cubic root of 51404156 is about 371.8199980890.

The spelling of 51404156 in words is "fifty-one million, four hundred four thousand, one hundred fifty-six".