253522042135 has 64 divisors (see below), whose sum is σ = 321959784960. Its totient is φ = 191462584320.

The previous prime is 253522042133. The next prime is 253522042177. The reversal of 253522042135 is 531240225352.

It is not a de Polignac number, because 253522042135 - 2¹ = 253522042133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253522042135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253522042133) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 196375840 + ... + 196377130.

It is an arithmetic number, because the mean of its divisors is an integer number (5030621640).

Almost surely, 2^253522042135 is an apocalyptic number.

253522042135 is a deficient number, since it is larger than the sum of its proper divisors (68437742825).

253522042135 is a wasteful number, since it uses less digits than its factorization.

253522042135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 253522042135 its reverse (531240225352), we get a palindrome (784762267487).

The spelling of 253522042135 in words is "two hundred fifty-three billion, five hundred twenty-two million, forty-two thousand, one hundred thirty-five".