6903521090055 has 24 divisors (see below), whose sum is σ = 11986080069600. Its totient is φ = 3675731192640.

The previous prime is 6903521090021. The next prime is 6903521090083. The reversal of 6903521090055 is 5500901253096.

It is not a de Polignac number, because 6903521090055 - 2¹⁵ = 6903521057287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128029456 + ... + 128083365.

It is an arithmetic number, because the mean of its divisors is an integer number (499420002900).

Almost surely, 2^{6903521090055} is an apocalyptic number.

6903521090055 is a deficient number, since it is larger than the sum of its proper divisors (5082558979545).

6903521090055 is a wasteful number, since it uses less digits than its factorization.

6903521090055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256113431 (or 256113428 counting only the distinct ones).

The product of its (nonzero) digits is 364500, while the sum is 45.

The spelling of 6903521090055 in words is "six trillion, nine hundred three billion, five hundred twenty-one million, ninety thousand, fifty-five".