51875497 has 2 divisors, whose sum is σ = 51875498. Its totient is φ = 51875496.

The previous prime is 51875471. The next prime is 51875521. The reversal of 51875497 is 79457815.

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., 44235801 + 7639696 = 6651^2 + 2764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51875497 is a prime.

It is not a weakly prime, because it can be changed into another prime (51875407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25937748 + 25937749.

It is an arithmetic number, because the mean of its divisors is an integer number (25937749).

Almost surely, 2^51875497 is an apocalyptic number.

It is an amenable number.

51875497 is a deficient number, since it is larger than the sum of its proper divisors (1).

51875497 is an equidigital number, since it uses as much as digits as its factorization.

51875497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 46.

The square root of 51875497 is about 7202.4646476050. The cubic root of 51875497 is about 372.9529873400.

The spelling of 51875497 in words is "fifty-one million, eight hundred seventy-five thousand, four hundred ninety-seven".