49259281 has 2 divisors, whose sum is σ = 49259282. Its totient is φ = 49259280.

The previous prime is 49259257. The next prime is 49259291. The reversal of 49259281 is 18295294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48776256 + 483025 = 6984^2 + 695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49259281 is a prime.

It is a super-2 number, since 2×49259281² = 4852953529273922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49259291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24629640 + 24629641.

It is an arithmetic number, because the mean of its divisors is an integer number (24629641).

Almost surely, 2^49259281 is an apocalyptic number.

It is an amenable number.

49259281 is a deficient number, since it is larger than the sum of its proper divisors (1).

49259281 is an equidigital number, since it uses as much as digits as its factorization.

49259281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 40.

The square root of 49259281 is about 7018.4956365307. The cubic root of 49259281 is about 366.5748702251.

The spelling of 49259281 in words is "forty-nine million, two hundred fifty-nine thousand, two hundred eighty-one".