51465105 has 16 divisors (see below), whose sum is σ = 91493760. Its totient is φ = 27447984.

The previous prime is 51465101. The next prime is 51465107. The reversal of 51465105 is 50156415.

It is a happy number.

51465105 is a `hidden beast` number, since 5 + 1 + 4 + 651 + 0 + 5 = 666.

It is not a de Polignac number, because 51465105 - 2² = 51465101 is a prime.

It is a super-2 number, since 2×51465105² = 5297314065322050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51465101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190477 + ... + 190746.

It is an arithmetic number, because the mean of its divisors is an integer number (5718360).

Almost surely, 2^51465105 is an apocalyptic number.

It is an amenable number.

51465105 is a deficient number, since it is larger than the sum of its proper divisors (40028655).

51465105 is a wasteful number, since it uses less digits than its factorization.

51465105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381237 (or 381231 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 51465105 is about 7173.9183853735. The cubic root of 51465105 is about 371.9668935158.

The spelling of 51465105 in words is "fifty-one million, four hundred sixty-five thousand, one hundred five".