61513027 has 2 divisors, whose sum is σ = 61513028. Its totient is φ = 61513026.

The previous prime is 61513007. The next prime is 61513033. The reversal of 61513027 is 72031516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61513027 - 2¹¹ = 61510979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61512992 and 61513010.

It is not a weakly prime, because it can be changed into another prime (61513007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30756513 + 30756514.

It is an arithmetic number, because the mean of its divisors is an integer number (30756514).

Almost surely, 2^61513027 is an apocalyptic number.

61513027 is a deficient number, since it is larger than the sum of its proper divisors (1).

61513027 is an equidigital number, since it uses as much as digits as its factorization.

61513027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 61513027 is about 7843.0240978847. The cubic root of 61513027 is about 394.7502068592.

The spelling of 61513027 in words is "sixty-one million, five hundred thirteen thousand, twenty-seven".