2905541839225 has 9 divisors (see below), whose sum is σ = 3602882448973. Its totient is φ = 2324426653120.

The previous prime is 2905541839223. The next prime is 2905541839279. The reversal of 2905541839225 is 5229381455092.

The square root of 2905541839225 is 1704565.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 752290818409 + 2153251020816 = 867347^2 + 1467396^2 .

It is not a de Polignac number, because 2905541839225 - 2¹ = 2905541839223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2905541839223) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8352369 + ... + 8693281.

Almost surely, 2^{2905541839225} is an apocalyptic number.

2905541839225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2905541839225 is the 1704565-th square number.

2905541839225 is the 852283-rd centered octagonal number.

It is an amenable number.

2905541839225 is a deficient number, since it is larger than the sum of its proper divisors (697340609748).

2905541839225 is an frugal number, since it uses more digits than its factorization.

2905541839225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681836 (or 340918 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 55.

The spelling of 2905541839225 in words is "two trillion, nine hundred five billion, five hundred forty-one million, eight hundred thirty-nine thousand, two hundred twenty-five".