35520221523 has 4 divisors (see below), whose sum is σ = 47360295368. Its totient is φ = 23680147680.

The previous prime is 35520221501. The next prime is 35520221537. The reversal of 35520221523 is 32512202553.

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

It is not a de Polignac number, because 35520221523 - 2⁵ = 35520221491 is a prime.

It is a super-2 number, since 2×35520221523² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35520221573) 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, 5920036918 + ... + 5920036923.

It is an arithmetic number, because the mean of its divisors is an integer number (11840073842).

Almost surely, 2^35520221523 is an apocalyptic number.

35520221523 is a deficient number, since it is larger than the sum of its proper divisors (11840073845).

35520221523 is a wasteful number, since it uses less digits than its factorization.

35520221523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11840073844.

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 35520221523 in words is "thirty-five billion, five hundred twenty million, two hundred twenty-one thousand, five hundred twenty-three".