961635053 has 4 divisors (see below), whose sum is σ = 964255680. Its totient is φ = 959014428.

The previous prime is 961635047. The next prime is 961635061. The reversal of 961635053 is 350536169.

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.

It is a cyclic number.

It is not a de Polignac number, because 961635053 - 2⁸ = 961634797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 961634998 and 961635016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961635013) 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, 1309763 + ... + 1310496.

It is an arithmetic number, because the mean of its divisors is an integer number (241063920).

Almost surely, 2^961635053 is an apocalyptic number.

It is an amenable number.

961635053 is a deficient number, since it is larger than the sum of its proper divisors (2620627).

961635053 is a wasteful number, since it uses less digits than its factorization.

961635053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620626.

The product of its (nonzero) digits is 72900, while the sum is 38.

The square root of 961635053 is about 31010.2410987080. The cubic root of 961635053 is about 987.0445658878.

The spelling of 961635053 in words is "nine hundred sixty-one million, six hundred thirty-five thousand, fifty-three".