61057003 has 4 divisors (see below), whose sum is σ = 69779440. Its totient is φ = 52334568.

The previous prime is 61056997. The next prime is 61057039. The reversal of 61057003 is 30075016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61057003 - 2⁵ = 61056971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61057043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4361208 + ... + 4361221.

It is an arithmetic number, because the mean of its divisors is an integer number (17444860).

Almost surely, 2^61057003 is an apocalyptic number.

61057003 is a deficient number, since it is larger than the sum of its proper divisors (8722437).

61057003 is an equidigital number, since it uses as much as digits as its factorization.

61057003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8722436.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 61057003 is about 7813.8980669062. The cubic root of 61057003 is about 393.7722987959.

The spelling of 61057003 in words is "sixty-one million, fifty-seven thousand, three".