61854856 has 24 divisors (see below), whose sum is σ = 134913870. Its totient is φ = 26509056.

The previous prime is 61854853. The next prime is 61854893. The reversal of 61854856 is 65845816.

It can be written as a sum of positive squares in only one way, i.e., 52794756 + 9060100 = 7266^2 + 3010^2 .

It is not an unprimeable number, because it can be changed into a prime (61854853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78505 + ... + 79288.

Almost surely, 2^61854856 is an apocalyptic number.

It is an amenable number.

61854856 is an abundant number, since it is smaller than the sum of its proper divisors (73059014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61854856 is a wasteful number, since it uses less digits than its factorization.

61854856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157813 (or 157802 counting only the distinct ones).

The product of its digits is 230400, while the sum is 43.

The square root of 61854856 is about 7864.7858203514. The cubic root of 61854856 is about 395.4800679124.

The spelling of 61854856 in words is "sixty-one million, eight hundred fifty-four thousand, eight hundred fifty-six".