51265406 has 8 divisors (see below), whose sum is σ = 77407824. Its totient is φ = 25462800.

The previous prime is 51265397. The next prime is 51265411. The reversal of 51265406 is 60456215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 84575 + ... + 85178.

It is an arithmetic number, because the mean of its divisors is an integer number (9675978).

Almost surely, 2^51265406 is an apocalyptic number.

51265406 is a deficient number, since it is larger than the sum of its proper divisors (26142418).

51265406 is a wasteful number, since it uses less digits than its factorization.

51265406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169906.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 51265406 is about 7159.9864525011. The cubic root of 51265406 is about 371.4851580313.

The spelling of 51265406 in words is "fifty-one million, two hundred sixty-five thousand, four hundred six".