61706051 has 8 divisors (see below), whose sum is σ = 67983408. Its totient is φ = 55540000.

The previous prime is 61706041. The next prime is 61706063. The reversal of 61706051 is 15060716.

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-61706051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61706051.

It is not an unprimeable number, because it can be changed into a prime (61706041) 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, 26660 + ... + 28881.

It is an arithmetic number, because the mean of its divisors is an integer number (8497926).

Almost surely, 2^61706051 is an apocalyptic number.

61706051 is a deficient number, since it is larger than the sum of its proper divisors (6277357).

61706051 is a wasteful number, since it uses less digits than its factorization.

61706051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55653.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 61706051 is about 7855.3199171008. The cubic root of 61706051 is about 395.1626761447.

Adding to 61706051 its reverse (15060716), we get a palindrome (76766767).

It can be divided in two parts, 6170 and 6051, that added together give a palindrome (12221).

The spelling of 61706051 in words is "sixty-one million, seven hundred six thousand, fifty-one".