90955004551 has 4 divisors (see below), whose sum is σ = 90959808400. Its totient is φ = 90950200704.

The previous prime is 90955004531. The next prime is 90955004563. The reversal of 90955004551 is 15540055909.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90955004551 - 2¹¹ = 90955002503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90955004498 and 90955004507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90955004531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2373411 + ... + 2411428.

It is an arithmetic number, because the mean of its divisors is an integer number (22739952100).

Almost surely, 2^90955004551 is an apocalyptic number.

90955004551 is a deficient number, since it is larger than the sum of its proper divisors (4803849).

90955004551 is a wasteful number, since it uses less digits than its factorization.

90955004551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803848.

The product of its (nonzero) digits is 202500, while the sum is 43.

The spelling of 90955004551 in words is "ninety billion, nine hundred fifty-five million, four thousand, five hundred fifty-one".