61552003 has 2 divisors, whose sum is σ = 61552004. Its totient is φ = 61552002.

The previous prime is 61551991. The next prime is 61552009. The reversal of 61552003 is 30025516.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61552003 - 2⁹ = 61551491 is a prime.

It is not a weakly prime, because it can be changed into another prime (61552009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30776001 + 30776002.

It is an arithmetic number, because the mean of its divisors is an integer number (30776002).

Almost surely, 2^61552003 is an apocalyptic number.

61552003 is a deficient number, since it is larger than the sum of its proper divisors (1).

61552003 is an equidigital number, since it uses as much as digits as its factorization.

61552003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 61552003 is about 7845.5084602593. The cubic root of 61552003 is about 394.8335633793.

Adding to 61552003 its reverse (30025516), we get a palindrome (91577519).

The spelling of 61552003 in words is "sixty-one million, five hundred fifty-two thousand, three".