61301653 has 4 divisors (see below), whose sum is σ = 70059040. Its totient is φ = 52544268.

The previous prime is 61301633. The next prime is 61301659. The reversal of 61301653 is 35610316.

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 not a de Polignac number, because 61301653 - 2²¹ = 59204501 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 (61301659) 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, 4378683 + ... + 4378696.

It is an arithmetic number, because the mean of its divisors is an integer number (17514760).

Almost surely, 2^61301653 is an apocalyptic number.

It is an amenable number.

61301653 is a deficient number, since it is larger than the sum of its proper divisors (8757387).

61301653 is an equidigital number, since it uses as much as digits as its factorization.

61301653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8757386.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 61301653 is about 7829.5372149317. The cubic root of 61301653 is about 394.2975347961.

Adding to 61301653 its reverse (35610316), we get a palindrome (96911969).

The spelling of 61301653 in words is "sixty-one million, three hundred one thousand, six hundred fifty-three".