51626459 has 2 divisors, whose sum is σ = 51626460. Its totient is φ = 51626458.

The previous prime is 51626441. The next prime is 51626461. The reversal of 51626459 is 95462615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51626459 - 2¹⁶ = 51560923 is a prime.

Together with 51626461, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51626489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25813229 + 25813230.

It is an arithmetic number, because the mean of its divisors is an integer number (25813230).

Almost surely, 2^51626459 is an apocalyptic number.

51626459 is a deficient number, since it is larger than the sum of its proper divisors (1).

51626459 is an equidigital number, since it uses as much as digits as its factorization.

51626459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 51626459 is about 7185.1554610878. The cubic root of 51626459 is about 372.3552196237.

The spelling of 51626459 in words is "fifty-one million, six hundred twenty-six thousand, four hundred fifty-nine".