61050050551 has 6 divisors (see below), whose sum is σ = 71017405800. Its totient is φ = 52328614716.

The previous prime is 61050050549. The next prime is 61050050587. The reversal of 61050050551 is 15505005016.

It is not a de Polignac number, because 61050050551 - 2¹ = 61050050549 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 (61050053551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 622959651 + ... + 622959748.

It is an arithmetic number, because the mean of its divisors is an integer number (11836234300).

Almost surely, 2^61050050551 is an apocalyptic number.

61050050551 is a deficient number, since it is larger than the sum of its proper divisors (9967355249).

61050050551 is a wasteful number, since it uses less digits than its factorization.

61050050551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245919413 (or 1245919406 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

Adding to 61050050551 its reverse (15505005016), we get a palindrome (76555055567).

The spelling of 61050050551 in words is "sixty-one billion, fifty million, fifty thousand, five hundred fifty-one".