5051561157 has 24 divisors (see below), whose sum is σ = 7385952600. Its totient is φ = 3326668800.

The previous prime is 5051561143. The next prime is 5051561161. The reversal of 5051561157 is 7511651505.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1253797281 + 3797763876 = 35409^2 + 61626^2 .

It is not a de Polignac number, because 5051561157 - 2⁷ = 5051561029 is a prime.

It is a super-2 number, since 2×5051561157² = 51036540245822357298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5051561107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 401953 + ... + 414329.

It is an arithmetic number, because the mean of its divisors is an integer number (307748025).

Almost surely, 2^5051561157 is an apocalyptic number.

It is an amenable number.

5051561157 is a deficient number, since it is larger than the sum of its proper divisors (2334391443).

5051561157 is a wasteful number, since it uses less digits than its factorization.

5051561157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12933 (or 12930 counting only the distinct ones).

The product of its (nonzero) digits is 26250, while the sum is 36.

The square root of 5051561157 is about 71074.3354312933. The cubic root of 5051561157 is about 1715.8337461390.

The spelling of 5051561157 in words is "five billion, fifty-one million, five hundred sixty-one thousand, one hundred fifty-seven".