51299429 has 2 divisors, whose sum is σ = 51299430. Its totient is φ = 51299428.

The previous prime is 51299383. The next prime is 51299441. The reversal of 51299429 is 92499215.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39753025 + 11546404 = 6305^2 + 3398^2 .

It is a cyclic number.

It is not a de Polignac number, because 51299429 - 2¹⁶ = 51233893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51299029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25649714 + 25649715.

It is an arithmetic number, because the mean of its divisors is an integer number (25649715).

Almost surely, 2^51299429 is an apocalyptic number.

It is an amenable number.

51299429 is a deficient number, since it is larger than the sum of its proper divisors (1).

51299429 is an equidigital number, since it uses as much as digits as its factorization.

51299429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 51299429 is about 7162.3619707468. The cubic root of 51299429 is about 371.5673202892.

The spelling of 51299429 in words is "fifty-one million, two hundred ninety-nine thousand, four hundred twenty-nine".