61677575 has 6 divisors (see below), whose sum is σ = 76480224. Its totient is φ = 49342040.

The previous prime is 61677491. The next prime is 61677613. The reversal of 61677575 is 57577616.

It is not a de Polignac number, because 61677575 - 2¹⁶ = 61612039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1233527 + ... + 1233576.

It is an arithmetic number, because the mean of its divisors is an integer number (12746704).

Almost surely, 2^61677575 is an apocalyptic number.

61677575 is a deficient number, since it is larger than the sum of its proper divisors (14802649).

61677575 is a wasteful number, since it uses less digits than its factorization.

61677575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467113 (or 2467108 counting only the distinct ones).

The product of its digits is 308700, while the sum is 44.

The square root of 61677575 is about 7853.5071783249. The cubic root of 61677575 is about 395.1018804659.

The spelling of 61677575 in words is "sixty-one million, six hundred seventy-seven thousand, five hundred seventy-five".