49028257 has 2 divisors, whose sum is σ = 49028258. Its totient is φ = 49028256.

The previous prime is 49028237. The next prime is 49028261. The reversal of 49028257 is 75282094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32251041 + 16777216 = 5679^2 + 4096^2 .

It is a cyclic number.

It is not a de Polignac number, because 49028257 - 2⁷ = 49028129 is a prime.

It is equal to p_2946097 and since 49028257 and 2946097 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (49028237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24514128 + 24514129.

It is an arithmetic number, because the mean of its divisors is an integer number (24514129).

Almost surely, 2^49028257 is an apocalyptic number.

It is an amenable number.

49028257 is a deficient number, since it is larger than the sum of its proper divisors (1).

49028257 is an equidigital number, since it uses as much as digits as its factorization.

49028257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 49028257 is about 7002.0180662435. The cubic root of 49028257 is about 366.0008983027. Note that the first 3 decimals are identical.

The spelling of 49028257 in words is "forty-nine million, twenty-eight thousand, two hundred fifty-seven".