61761051 has 24 divisors (see below), whose sum is σ = 103047984. Its totient is φ = 35228160.

The previous prime is 61761041. The next prime is 61761053. The reversal of 61761051 is 15016716.

It is not a de Polignac number, because 61761051 - 2⁹ = 61760539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61761053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16666 + ... + 20031.

It is an arithmetic number, because the mean of its divisors is an integer number (4293666).

Almost surely, 2^61761051 is an apocalyptic number.

61761051 is a deficient number, since it is larger than the sum of its proper divisors (41286933).

61761051 is a wasteful number, since it uses less digits than its factorization.

61761051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36731 (or 36728 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 61761051 is about 7858.8199495853. The cubic root of 61761051 is about 395.2800470924.

Adding to 61761051 its reverse (15016716), we get a palindrome (76777767).

It can be divided in two parts, 6176 and 1051, that added together give a palindrome (7227).

The spelling of 61761051 in words is "sixty-one million, seven hundred sixty-one thousand, fifty-one".