61562887 has 2 divisors, whose sum is σ = 61562888. Its totient is φ = 61562886.

The previous prime is 61562861. The next prime is 61562909. The reversal of 61562887 is 78826516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61562887 - 2⁷ = 61562759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61562827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30781443 + 30781444.

It is an arithmetic number, because the mean of its divisors is an integer number (30781444).

Almost surely, 2^61562887 is an apocalyptic number.

61562887 is a deficient number, since it is larger than the sum of its proper divisors (1).

61562887 is an equidigital number, since it uses as much as digits as its factorization.

61562887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 43.

The square root of 61562887 is about 7846.2020748895. The cubic root of 61562887 is about 394.8568342994.

The spelling of 61562887 in words is "sixty-one million, five hundred sixty-two thousand, eight hundred eighty-seven".