51510158087 has 2 divisors, whose sum is σ = 51510158088. Its totient is φ = 51510158086.

The previous prime is 51510158059. The next prime is 51510158113. The reversal of 51510158087 is 78085101515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51510158087 - 2¹² = 51510153991 is a prime.

It is a super-4 number, since 4×51510158087⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51510158027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25755079043 + 25755079044.

It is an arithmetic number, because the mean of its divisors is an integer number (25755079044).

Almost surely, 2^51510158087 is an apocalyptic number.

51510158087 is a deficient number, since it is larger than the sum of its proper divisors (1).

51510158087 is an equidigital number, since it uses as much as digits as its factorization.

51510158087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56000, while the sum is 41.

The spelling of 51510158087 in words is "fifty-one billion, five hundred ten million, one hundred fifty-eight thousand, eighty-seven".