61905853 has 8 divisors (see below), whose sum is σ = 65390336. Its totient is φ = 58514400.

The previous prime is 61905821. The next prime is 61905869. The reversal of 61905853 is 35850916.

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

It is not a de Polignac number, because 61905853 - 2⁵ = 61905821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61905803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21888 + ... + 24553.

It is an arithmetic number, because the mean of its divisors is an integer number (8173792).

Almost surely, 2^61905853 is an apocalyptic number.

It is an amenable number.

61905853 is a deficient number, since it is larger than the sum of its proper divisors (3484483).

61905853 is a wasteful number, since it uses less digits than its factorization.

61905853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46515.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 61905853 is about 7868.0272622812. The cubic root of 61905853 is about 395.5887241991.

The spelling of 61905853 in words is "sixty-one million, nine hundred five thousand, eight hundred fifty-three".