61613011 has 2 divisors, whose sum is σ = 61613012. Its totient is φ = 61613010.

The previous prime is 61612997. The next prime is 61613017. The reversal of 61613011 is 11031616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61613011 - 2¹⁵ = 61580243 is a prime.

It is a super-2 number, since 2×61613011² = 7592326248972242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61613011.

It is not a weakly prime, because it can be changed into another prime (61613017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30806505 + 30806506.

It is an arithmetic number, because the mean of its divisors is an integer number (30806506).

Almost surely, 2^61613011 is an apocalyptic number.

61613011 is a deficient number, since it is larger than the sum of its proper divisors (1).

61613011 is an equidigital number, since it uses as much as digits as its factorization.

61613011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 61613011 is about 7849.3955818267. The cubic root of 61613011 is about 394.9639682991.

Adding to 61613011 its reverse (11031616), we get a palindrome (72644627).

The spelling of 61613011 in words is "sixty-one million, six hundred thirteen thousand, eleven".