2865135551 has 2 divisors, whose sum is σ = 2865135552. Its totient is φ = 2865135550.

The previous prime is 2865135541. The next prime is 2865135563. The reversal of 2865135551 is 1555315682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2865135551 - 2⁶ = 2865135487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2865135499 and 2865135508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2865135541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432567775 + 1432567776.

It is an arithmetic number, because the mean of its divisors is an integer number (1432567776).

Almost surely, 2^2865135551 is an apocalyptic number.

2865135551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2865135551 is an equidigital number, since it uses as much as digits as its factorization.

2865135551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180000, while the sum is 41.

The square root of 2865135551 is about 53526.9609729527. The cubic root of 2865135551 is about 1420.3053550489.

The spelling of 2865135551 in words is "two billion, eight hundred sixty-five million, one hundred thirty-five thousand, five hundred fifty-one".