51672266 has 4 divisors (see below), whose sum is σ = 77508402. Its totient is φ = 25836132.

The previous prime is 51672251. The next prime is 51672281. The reversal of 51672266 is 66227615.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (51672251) and next prime (51672281).

It can be written as a sum of positive squares in only one way, i.e., 26822041 + 24850225 = 5179^2 + 4985^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12918065 + ... + 12918068.

Almost surely, 2^51672266 is an apocalyptic number.

51672266 is a deficient number, since it is larger than the sum of its proper divisors (25836136).

51672266 is a wasteful number, since it uses less digits than its factorization.

51672266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25836135.

The product of its digits is 30240, while the sum is 35.

The square root of 51672266 is about 7188.3423680289. The cubic root of 51672266 is about 372.4653145488.

The spelling of 51672266 in words is "fifty-one million, six hundred seventy-two thousand, two hundred sixty-six".