402542053455 has 32 divisors (see below), whose sum is σ = 645884455680. Its totient is φ = 214084235520.

The previous prime is 402542053393. The next prime is 402542053519. The reversal of 402542053455 is 554350245204.

It is not a de Polignac number, because 402542053455 - 2²⁴ = 402525276239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7633459 + ... + 7686011.

It is an arithmetic number, because the mean of its divisors is an integer number (20183889240).

Almost surely, 2^402542053455 is an apocalyptic number.

402542053455 is a deficient number, since it is larger than the sum of its proper divisors (243342402225).

402542053455 is a wasteful number, since it uses less digits than its factorization.

402542053455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53991.

The product of its (nonzero) digits is 480000, while the sum is 39.

Adding to 402542053455 its reverse (554350245204), we get a palindrome (956892298659).

The spelling of 402542053455 in words is "four hundred two billion, five hundred forty-two million, fifty-three thousand, four hundred fifty-five".