52198457 has 2 divisors, whose sum is σ = 52198458. Its totient is φ = 52198456.

The previous prime is 52198441. The next prime is 52198511. The reversal of 52198457 is 75489125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50069776 + 2128681 = 7076^2 + 1459^2 .

It is a cyclic number.

It is not a de Polignac number, because 52198457 - 2⁴ = 52198441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52198357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26099228 + 26099229.

It is an arithmetic number, because the mean of its divisors is an integer number (26099229).

Almost surely, 2^52198457 is an apocalyptic number.

It is an amenable number.

52198457 is a deficient number, since it is larger than the sum of its proper divisors (1).

52198457 is an equidigital number, since it uses as much as digits as its factorization.

52198457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 41.

The square root of 52198457 is about 7224.8499638401. The cubic root of 52198457 is about 373.7253481278.

The spelling of 52198457 in words is "fifty-two million, one hundred ninety-eight thousand, four hundred fifty-seven".