61826012225 has 6 divisors (see below), whose sum is σ = 76664255190. Its totient is φ = 49460809760.

The previous prime is 61826012219. The next prime is 61826012231. The reversal of 61826012225 is 52221062816.

It is an interprime number because it is at equal distance from previous prime (61826012219) and next prime (61826012231).

It can be written as a sum of positive squares in 3 ways, for example, as 20826241969 + 40999770256 = 144313^2 + 202484^2 .

It is not a de Polignac number, because 61826012225 - 2⁶ = 61826012161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1236520220 + ... + 1236520269.

It is an arithmetic number, because the mean of its divisors is an integer number (12777375865).

Almost surely, 2^61826012225 is an apocalyptic number.

It is an amenable number.

61826012225 is a deficient number, since it is larger than the sum of its proper divisors (14838242965).

61826012225 is a wasteful number, since it uses less digits than its factorization.

61826012225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473040499 (or 2473040494 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 61826012225 in words is "sixty-one billion, eight hundred twenty-six million, twelve thousand, two hundred twenty-five".