5156049257 has 2 divisors, whose sum is σ = 5156049258. Its totient is φ = 5156049256.

The previous prime is 5156049179. The next prime is 5156049263. The reversal of 5156049257 is 7529406515.

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., 4617066601 + 538982656 = 67949^2 + 23216^2 .

It is a cyclic number.

It is not a de Polignac number, because 5156049257 - 2¹⁸ = 5155787113 is a prime.

It is a super-3 number, since 3×5156049257³ (a number of 30 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 (5156049277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578024628 + 2578024629.

It is an arithmetic number, because the mean of its divisors is an integer number (2578024629).

Almost surely, 2^5156049257 is an apocalyptic number.

It is an amenable number.

5156049257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156049257 is an equidigital number, since it uses as much as digits as its factorization.

5156049257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 44.

The square root of 5156049257 is about 71805.6352732848. The cubic root of 5156049257 is about 1727.5833875094.

The spelling of 5156049257 in words is "five billion, one hundred fifty-six million, forty-nine thousand, two hundred fifty-seven".