61020001522 has 8 divisors (see below), whose sum is σ = 91532083500. Its totient is φ = 30509307024.

The previous prime is 61020001517. The next prime is 61020001573. The reversal of 61020001522 is 22510002016.

61020001522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 60925542561 + 94458961 = 246831^2 + 9719^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 61020001522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228897 + ... + 417652.

Almost surely, 2^61020001522 is an apocalyptic number.

61020001522 is a deficient number, since it is larger than the sum of its proper divisors (30512081978).

61020001522 is a wasteful number, since it uses less digits than its factorization.

61020001522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693740.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 61020001522 its reverse (22510002016), we get a palindrome (83530003538).

The spelling of 61020001522 in words is "sixty-one billion, twenty million, one thousand, five hundred twenty-two".