51533051 has 2 divisors, whose sum is σ = 51533052. Its totient is φ = 51533050.

The previous prime is 51533017. The next prime is 51533057. The reversal of 51533051 is 15033515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51533051 - 2¹⁰ = 51532027 is a prime.

It is not a weakly prime, because it can be changed into another prime (51533057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25766525 + 25766526.

It is an arithmetic number, because the mean of its divisors is an integer number (25766526).

Almost surely, 2^51533051 is an apocalyptic number.

51533051 is a deficient number, since it is larger than the sum of its proper divisors (1).

51533051 is an equidigital number, since it uses as much as digits as its factorization.

51533051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 51533051 is about 7178.6524501469. The cubic root of 51533051 is about 372.1305160215.

Adding to 51533051 its reverse (15033515), we get a palindrome (66566566).

The spelling of 51533051 in words is "fifty-one million, five hundred thirty-three thousand, fifty-one".