61712051 has 4 divisors (see below), whose sum is σ = 61780704. Its totient is φ = 61643400.

The previous prime is 61712047. The next prime is 61712071. The reversal of 61712051 is 15021716.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61712051 - 2² = 61712047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61712071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32960 + ... + 34781.

It is an arithmetic number, because the mean of its divisors is an integer number (15445176).

Almost surely, 2^61712051 is an apocalyptic number.

61712051 is a deficient number, since it is larger than the sum of its proper divisors (68653).

61712051 is an equidigital number, since it uses as much as digits as its factorization.

61712051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68652.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 61712051 is about 7855.7018146057. The cubic root of 61712051 is about 395.1754836364.

Adding to 61712051 its reverse (15021716), we get a palindrome (76733767).

The spelling of 61712051 in words is "sixty-one million, seven hundred twelve thousand, fifty-one".