520022256402 has 32 divisors (see below), whose sum is σ = 1134661017600. Its totient is φ = 157573195920.

The previous prime is 520022256373. The next prime is 520022256461. The reversal of 520022256402 is 204652220025.

It is a self number, because there is not a number n which added to its sum of digits gives 520022256402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 937683 + ... + 1385385.

It is an arithmetic number, because the mean of its divisors is an integer number (35458156800).

Almost surely, 2^520022256402 is an apocalyptic number.

520022256402 is an abundant number, since it is smaller than the sum of its proper divisors (614638761198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520022256402 is a wasteful number, since it uses less digits than its factorization.

520022256402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465318.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 520022256402 its reverse (204652220025), we get a palindrome (724674476427).

The spelling of 520022256402 in words is "five hundred twenty billion, twenty-two million, two hundred fifty-six thousand, four hundred two".