61022535953 has 4 divisors (see below), whose sum is σ = 61023416868. Its totient is φ = 61021655040.

The previous prime is 61022535913. The next prime is 61022535979. The reversal of 61022535953 is 35953522016.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55614845584 + 5407690369 = 235828^2 + 73537^2 .

It is a cyclic number.

It is not a de Polignac number, because 61022535953 - 2⁸ = 61022535697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61022535953.

It is not an unprimeable number, because it can be changed into a prime (61022535913) 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, 326768 + ... + 478353.

It is an arithmetic number, because the mean of its divisors is an integer number (15255854217).

Almost surely, 2^61022535953 is an apocalyptic number.

It is an amenable number.

61022535953 is a deficient number, since it is larger than the sum of its proper divisors (880915).

61022535953 is an equidigital number, since it uses as much as digits as its factorization.

61022535953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880914.

The product of its (nonzero) digits is 243000, while the sum is 41.

The spelling of 61022535953 in words is "sixty-one billion, twenty-two million, five hundred thirty-five thousand, nine hundred fifty-three".