61880051 has 8 divisors (see below), whose sum is σ = 68369184. Its totient is φ = 55707520.

The previous prime is 61880033. The next prime is 61880057. The reversal of 61880051 is 15008816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61880051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61879996 and 61880023.

It is not an unprimeable number, because it can be changed into a prime (61880057) 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, 78740 + ... + 79521.

It is an arithmetic number, because the mean of its divisors is an integer number (8546148).

Almost surely, 2^61880051 is an apocalyptic number.

61880051 is a deficient number, since it is larger than the sum of its proper divisors (6489133).

61880051 is a wasteful number, since it uses less digits than its factorization.

61880051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158301.

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 61880051 is about 7866.3874173600. The cubic root of 61880051 is about 395.5337568674.

Adding to 61880051 its reverse (15008816), we get a palindrome (76888867).

The spelling of 61880051 in words is "sixty-one million, eight hundred eighty thousand, fifty-one".