2135524540551 has 16 divisors (see below), whose sum is σ = 2885858772480. Its totient is φ = 1404508888640.

The previous prime is 2135524540549. The next prime is 2135524540559. The reversal of 2135524540551 is 1550454255312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2135524540551 - 2¹ = 2135524540549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135524540559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8909055 + ... + 9145616.

It is an arithmetic number, because the mean of its divisors is an integer number (180366173280).

Almost surely, 2^{2135524540551} is an apocalyptic number.

2135524540551 is a deficient number, since it is larger than the sum of its proper divisors (750334231929).

2135524540551 is a wasteful number, since it uses less digits than its factorization.

2135524540551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18055206.

The product of its (nonzero) digits is 600000, while the sum is 42.

Adding to 2135524540551 its reverse (1550454255312), we get a palindrome (3685978795863).

The spelling of 2135524540551 in words is "two trillion, one hundred thirty-five billion, five hundred twenty-four million, five hundred forty thousand, five hundred fifty-one".