245272057 has 2 divisors, whose sum is σ = 245272058. Its totient is φ = 245272056.

The previous prime is 245272021. The next prime is 245272061. The reversal of 245272057 is 750272542.

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., 239754256 + 5517801 = 15484^2 + 2349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245272057 is a prime.

It is a super-3 number, since 3×245272057³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (245272067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122636028 + 122636029.

It is an arithmetic number, because the mean of its divisors is an integer number (122636029).

Almost surely, 2^245272057 is an apocalyptic number.

It is an amenable number.

245272057 is a deficient number, since it is larger than the sum of its proper divisors (1).

245272057 is an equidigital number, since it uses as much as digits as its factorization.

245272057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 245272057 is about 15661.1639733450. The cubic root of 245272057 is about 625.9640009989.

The spelling of 245272057 in words is "two hundred forty-five million, two hundred seventy-two thousand, fifty-seven".