61895653 has 4 divisors (see below), whose sum is σ = 61911648. Its totient is φ = 61879660.

The previous prime is 61895629. The next prime is 61895671. The reversal of 61895653 is 35659816.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61895653 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 (61895693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1848 + ... + 11278.

It is an arithmetic number, because the mean of its divisors is an integer number (15477912).

Almost surely, 2^61895653 is an apocalyptic number.

It is an amenable number.

61895653 is a deficient number, since it is larger than the sum of its proper divisors (15995).

61895653 is an equidigital number, since it uses as much as digits as its factorization.

61895653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15994.

The product of its digits is 194400, while the sum is 43.

The square root of 61895653 is about 7867.3790426037. The cubic root of 61895653 is about 395.5669964387.

The spelling of 61895653 in words is "sixty-one million, eight hundred ninety-five thousand, six hundred fifty-three".