51357479 has 2 divisors, whose sum is σ = 51357480. Its totient is φ = 51357478.

The previous prime is 51357473. The next prime is 51357491. The reversal of 51357479 is 97475315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51357479 - 2⁸ = 51357223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51357473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25678739 + 25678740.

It is an arithmetic number, because the mean of its divisors is an integer number (25678740).

Almost surely, 2^51357479 is an apocalyptic number.

51357479 is a deficient number, since it is larger than the sum of its proper divisors (1).

51357479 is an equidigital number, since it uses as much as digits as its factorization.

51357479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 41.

The square root of 51357479 is about 7166.4132590857. The cubic root of 51357479 is about 371.7074216024.

The spelling of 51357479 in words is "fifty-one million, three hundred fifty-seven thousand, four hundred seventy-nine".