51672623 has 2 divisors, whose sum is σ = 51672624. Its totient is φ = 51672622.

The previous prime is 51672619. The next prime is 51672637. The reversal of 51672623 is 32627615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51672623 - 2² = 51672619 is a prime.

It is equal to p_3095339 and since 51672623 and 3095339 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51672623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51672323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25836311 + 25836312.

It is an arithmetic number, because the mean of its divisors is an integer number (25836312).

Almost surely, 2^51672623 is an apocalyptic number.

51672623 is a deficient number, since it is larger than the sum of its proper divisors (1).

51672623 is an equidigital number, since it uses as much as digits as its factorization.

51672623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 51672623 is about 7188.3671998584. The cubic root of 51672623 is about 372.4661723256.

The spelling of 51672623 in words is "fifty-one million, six hundred seventy-two thousand, six hundred twenty-three".