51523291 has 2 divisors, whose sum is σ = 51523292. Its totient is φ = 51523290.

The previous prime is 51523273. The next prime is 51523301. The reversal of 51523291 is 19232515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51523291 - 2⁵ = 51523259 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51523091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25761645 + 25761646.

It is an arithmetic number, because the mean of its divisors is an integer number (25761646).

Almost surely, 2^51523291 is an apocalyptic number.

51523291 is a deficient number, since it is larger than the sum of its proper divisors (1).

51523291 is an equidigital number, since it uses as much as digits as its factorization.

51523291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 28.

The square root of 51523291 is about 7177.9726246343. The cubic root of 51523291 is about 372.1070215645.

The spelling of 51523291 in words is "fifty-one million, five hundred twenty-three thousand, two hundred ninety-one".