61050550049 has 8 divisors (see below), whose sum is σ = 63198201000. Its totient is φ = 58905729792.

The previous prime is 61050550039. The next prime is 61050550051. The reversal of 61050550049 is 94005505016.

It can be written as a sum of positive squares in 4 ways, for example, as 17386268449 + 43664281600 = 131857^2 + 208960^2 .

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 61050550049 - 2¹² = 61050545953 is a prime.

It is a super-2 number, since 2×61050550049² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61050550039) 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, 663734 + ... + 750095.

It is an arithmetic number, because the mean of its divisors is an integer number (7899775125).

Almost surely, 2^61050550049 is an apocalyptic number.

It is an amenable number.

61050550049 is a deficient number, since it is larger than the sum of its proper divisors (2147650951).

61050550049 is a wasteful number, since it uses less digits than its factorization.

61050550049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415347.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 61050550049 in words is "sixty-one billion, fifty million, five hundred fifty thousand, forty-nine".