61545841037025 has 24 divisors (see below), whose sum is σ = 101875082285760. Its totient is φ = 32785967336640.

The previous prime is 61545841037011. The next prime is 61545841037047. The reversal of 61545841037025 is 52073014854516.

It is not a de Polignac number, because 61545841037025 - 2⁸ = 61545841036769 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 480950805 + ... + 481078754.

It is an arithmetic number, because the mean of its divisors is an integer number (4244795095240).

Almost surely, 2^{61545841037025} is an apocalyptic number.

It is an amenable number.

61545841037025 is a deficient number, since it is larger than the sum of its proper divisors (40329241248735).

61545841037025 is a wasteful number, since it uses less digits than its factorization.

61545841037025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962030425 (or 962030420 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 61545841037025 in words is "sixty-one trillion, five hundred forty-five billion, eight hundred forty-one million, thirty-seven thousand, twenty-five".