61576855 has 4 divisors (see below), whose sum is σ = 73892232. Its totient is φ = 49261480.

The previous prime is 61576849. The next prime is 61576871. The reversal of 61576855 is 55867516.

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

It is not a de Polignac number, because 61576855 - 2⁹ = 61576343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6157681 + ... + 6157690.

It is an arithmetic number, because the mean of its divisors is an integer number (18473058).

Almost surely, 2^61576855 is an apocalyptic number.

61576855 is a deficient number, since it is larger than the sum of its proper divisors (12315377).

61576855 is a wasteful number, since it uses less digits than its factorization.

61576855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12315376.

The product of its digits is 252000, while the sum is 43.

The square root of 61576855 is about 7847.0921365816. The cubic root of 61576855 is about 394.8866950562.

The spelling of 61576855 in words is "sixty-one million, five hundred seventy-six thousand, eight hundred fifty-five".