51162605 has 16 divisors (see below), whose sum is σ = 70008624. Its totient is φ = 35558400.

The previous prime is 51162599. The next prime is 51162619. The reversal of 51162605 is 50626115.

It can be written as a sum of positive squares in 8 ways, for example, as 2316484 + 48846121 = 1522^2 + 6989^2 .

It is not a de Polignac number, because 51162605 - 2⁴ = 51162589 is a prime.

It is a super-2 number, since 2×51162605² = 5235224300772050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22046 + ... + 24255.

It is an arithmetic number, because the mean of its divisors is an integer number (4375539).

Almost surely, 2^51162605 is an apocalyptic number.

It is an amenable number.

51162605 is a deficient number, since it is larger than the sum of its proper divisors (18846019).

51162605 is a wasteful number, since it uses less digits than its factorization.

51162605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46336.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 51162605 is about 7152.8039956370. The cubic root of 51162605 is about 371.2366824760.

The spelling of 51162605 in words is "fifty-one million, one hundred sixty-two thousand, six hundred five".