61850563 has 2 divisors, whose sum is σ = 61850564. Its totient is φ = 61850562.

The previous prime is 61850557. The next prime is 61850587. The reversal of 61850563 is 36505816.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61850563 - 2¹³ = 61842371 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (61850863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30925281 + 30925282.

It is an arithmetic number, because the mean of its divisors is an integer number (30925282).

Almost surely, 2^61850563 is an apocalyptic number.

61850563 is a deficient number, since it is larger than the sum of its proper divisors (1).

61850563 is an equidigital number, since it uses as much as digits as its factorization.

61850563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 61850563 is about 7864.5128901922. The cubic root of 61850563 is about 395.4709183467.

The spelling of 61850563 in words is "sixty-one million, eight hundred fifty thousand, five hundred sixty-three".