551020521342 has 16 divisors (see below), whose sum is σ = 1102129659792. Its totient is φ = 183658737600.

The previous prime is 551020521341. The next prime is 551020521343. The reversal of 551020521342 is 243125020155.

551020521342 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (551020521341) and next prime (551020521343).

It is a super-2 number, since 2×551020521342² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551020521341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3611409 + ... + 3760892.

It is an arithmetic number, because the mean of its divisors is an integer number (68883103737).

Almost surely, 2^551020521342 is an apocalyptic number.

551020521342 is an abundant number, since it is smaller than the sum of its proper divisors (551109138450).

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

551020521342 is a wasteful number, since it uses less digits than its factorization.

551020521342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384763.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 551020521342 its reverse (243125020155), we get a palindrome (794145541497).

The spelling of 551020521342 in words is "five hundred fifty-one billion, twenty million, five hundred twenty-one thousand, three hundred forty-two".