61616503 has 16 divisors (see below), whose sum is σ = 68987520. Its totient is φ = 54641664.

The previous prime is 61616497. The next prime is 61616531. The reversal of 61616503 is 30561616.

It is a cyclic number.

It is not a de Polignac number, because 61616503 - 2¹³ = 61608311 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61616543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132850 + ... + 133312.

It is an arithmetic number, because the mean of its divisors is an integer number (4311720).

Almost surely, 2^61616503 is an apocalyptic number.

61616503 is a deficient number, since it is larger than the sum of its proper divisors (7371017).

61616503 is a wasteful number, since it uses less digits than its factorization.

61616503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 61616503 is about 7849.6180161840. The cubic root of 61616503 is about 394.9714298622.

The spelling of 61616503 in words is "sixty-one million, six hundred sixteen thousand, five hundred three".