51672265 has 8 divisors (see below), whose sum is σ = 65654280. Its totient is φ = 38906112.

The previous prime is 51672251. The next prime is 51672281. The reversal of 51672265 is 56227615.

It can be written as a sum of positive squares in 4 ways, for example, as 5934096 + 45738169 = 2436^2 + 6763^2 .

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 51672265 - 2⁵ = 51672233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51672265.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303870 + ... + 304039.

It is an arithmetic number, because the mean of its divisors is an integer number (8206785).

Almost surely, 2^51672265 is an apocalyptic number.

It is an amenable number.

51672265 is a deficient number, since it is larger than the sum of its proper divisors (13982015).

51672265 is a wasteful number, since it uses less digits than its factorization.

51672265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607931.

The product of its digits is 25200, while the sum is 34.

The square root of 51672265 is about 7188.3422984719. The cubic root of 51672265 is about 372.4653121461.

The spelling of 51672265 in words is "fifty-one million, six hundred seventy-two thousand, two hundred sixty-five".