61677545 has 8 divisors (see below), whose sum is σ = 74101824. Its totient is φ = 49282864.

The previous prime is 61677491. The next prime is 61677613. The reversal of 61677545 is 54577616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61677545 - 2¹⁴ = 61661161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2519 + ... + 11388.

It is an arithmetic number, because the mean of its divisors is an integer number (9262728).

Almost surely, 2^61677545 is an apocalyptic number.

It is an amenable number.

61677545 is a deficient number, since it is larger than the sum of its proper divisors (12424279).

61677545 is a wasteful number, since it uses less digits than its factorization.

61677545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14799.

The product of its digits is 176400, while the sum is 41.

The square root of 61677545 is about 7853.5052683499. The cubic root of 61677545 is about 395.1018164067.

The spelling of 61677545 in words is "sixty-one million, six hundred seventy-seven thousand, five hundred forty-five".