52251457 has 2 divisors, whose sum is σ = 52251458. Its totient is φ = 52251456.

The previous prime is 52251449. The next prime is 52251473. The reversal of 52251457 is 75415225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51609856 + 641601 = 7184^2 + 801^2 .

It is a cyclic number.

It is not a de Polignac number, because 52251457 - 2³ = 52251449 is a prime.

It is not a weakly prime, because it can be changed into another prime (52251487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26125728 + 26125729.

It is an arithmetic number, because the mean of its divisors is an integer number (26125729).

Almost surely, 2^52251457 is an apocalyptic number.

It is an amenable number.

52251457 is a deficient number, since it is larger than the sum of its proper divisors (1).

52251457 is an equidigital number, since it uses as much as digits as its factorization.

52251457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14000, while the sum is 31.

The square root of 52251457 is about 7228.5169294953. The cubic root of 52251457 is about 373.8517933939.

The spelling of 52251457 in words is "fifty-two million, two hundred fifty-one thousand, four hundred fifty-seven".