5090921405 has 18 divisors (see below), whose sum is σ = 6493062894. Its totient is φ = 3831122176.

The previous prime is 5090921393. The next prime is 5090921411. The reversal of 5090921405 is 5041290905.

It can be written as a sum of positive squares in 9 ways, for example, as 8514724 + 5082406681 = 2918^2 + 71291^2 .

It is not a de Polignac number, because 5090921405 - 2²⁴ = 5074144189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2711327 + ... + 2713203.

Almost surely, 2^5090921405 is an apocalyptic number.

It is an amenable number.

5090921405 is a deficient number, since it is larger than the sum of its proper divisors (1402141489).

5090921405 is an frugal number, since it uses more digits than its factorization.

5090921405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793 (or 1899 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 5090921405 is about 71350.6930940408. The cubic root of 5090921405 is about 1720.2786420981.

The spelling of 5090921405 in words is "five billion, ninety million, nine hundred twenty-one thousand, four hundred five".