51154005 has 32 divisors (see below), whose sum is σ = 94051584. Its totient is φ = 23256576.

The previous prime is 51153989. The next prime is 51154007. The reversal of 51154005 is 50045115.

It is not a de Polignac number, because 51154005 - 2⁴ = 51153989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51154007) 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 31 ways as a sum of consecutive naturals, for example, 19449 + ... + 21921.

It is an arithmetic number, because the mean of its divisors is an integer number (2939112).

Almost surely, 2^51154005 is an apocalyptic number.

It is an amenable number.

51154005 is a deficient number, since it is larger than the sum of its proper divisors (42897579).

51154005 is a wasteful number, since it uses less digits than its factorization.

51154005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 51154005 is about 7152.2028075272. The cubic root of 51154005 is about 371.2158807311.

The spelling of 51154005 in words is "fifty-one million, one hundred fifty-four thousand, five".