51154501 has 2 divisors, whose sum is σ = 51154502. Its totient is φ = 51154500.

The previous prime is 51154483. The next prime is 51154541. The reversal of 51154501 is 10545115.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50041476 + 1113025 = 7074^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 51154501 - 2⁵ = 51154469 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 (51154541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25577250 + 25577251.

It is an arithmetic number, because the mean of its divisors is an integer number (25577251).

Almost surely, 2^51154501 is an apocalyptic number.

It is an amenable number.

51154501 is a deficient number, since it is larger than the sum of its proper divisors (1).

51154501 is an equidigital number, since it uses as much as digits as its factorization.

51154501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 51154501 is about 7152.2374820751. The cubic root of 51154501 is about 371.2170805230.

Adding to 51154501 its reverse (10545115), we get a palindrome (61699616).

The spelling of 51154501 in words is "fifty-one million, one hundred fifty-four thousand, five hundred one".