5405820061 has 8 divisors (see below), whose sum is σ = 5498212824. Its totient is φ = 5313549120.

The previous prime is 5405820059. The next prime is 5405820097. The reversal of 5405820061 is 1600285045.

It can be written as a sum of positive squares in 4 ways, for example, as 506520036 + 4899300025 = 22506^2 + 69995^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5405820061 - 2¹ = 5405820059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5405820041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61395 + ... + 120751.

It is an arithmetic number, because the mean of its divisors is an integer number (687276603).

Almost surely, 2^5405820061 is an apocalyptic number.

It is an amenable number.

5405820061 is a deficient number, since it is larger than the sum of its proper divisors (92392763).

5405820061 is a wasteful number, since it uses less digits than its factorization.

5405820061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60911.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 5405820061 is about 73524.2821182227. The cubic root of 5405820061 is about 1755.0407114957.

The spelling of 5405820061 in words is "five billion, four hundred five million, eight hundred twenty thousand, sixty-one".