51541265 has 8 divisors (see below), whose sum is σ = 63982440. Its totient is φ = 39811072.

The previous prime is 51541261. The next prime is 51541267. The reversal of 51541265 is 56214515.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 332929 + 51208336 = 577^2 + 7156^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51541265 - 2² = 51541261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (51541261) 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 7 ways as a sum of consecutive naturals, for example, 177584 + ... + 177873.

It is an arithmetic number, because the mean of its divisors is an integer number (7997805).

Almost surely, 2^51541265 is an apocalyptic number.

It is an amenable number.

51541265 is a deficient number, since it is larger than the sum of its proper divisors (12441175).

51541265 is a wasteful number, since it uses less digits than its factorization.

51541265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355491.

The product of its digits is 6000, while the sum is 29.

The square root of 51541265 is about 7179.2245402968. The cubic root of 51541265 is about 372.1502866192.

The spelling of 51541265 in words is "fifty-one million, five hundred forty-one thousand, two hundred sixty-five".