51546265 has 4 divisors (see below), whose sum is σ = 61855524. Its totient is φ = 41237008.

The previous prime is 51546239. The next prime is 51546277. The reversal of 51546265 is 56264515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56264515 = 5 ⋅11252903.

It can be written as a sum of positive squares in 2 ways, for example, as 24641296 + 26904969 = 4964^2 + 5187^2 .

It is a cyclic number.

It is not a de Polignac number, because 51546265 - 2¹¹ = 51544217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51546265.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5154622 + ... + 5154631.

It is an arithmetic number, because the mean of its divisors is an integer number (15463881).

Almost surely, 2^51546265 is an apocalyptic number.

It is an amenable number.

51546265 is a deficient number, since it is larger than the sum of its proper divisors (10309259).

51546265 is a wasteful number, since it uses less digits than its factorization.

51546265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10309258.

The product of its digits is 36000, while the sum is 34.

The square root of 51546265 is about 7179.5727588764. The cubic root of 51546265 is about 372.1623202863.

The spelling of 51546265 in words is "fifty-one million, five hundred forty-six thousand, two hundred sixty-five".