551214142520 has 32 divisors (see below), whose sum is σ = 1263632425920. Its totient is φ = 216325549440.

The previous prime is 551214142519. The next prime is 551214142561. The reversal of 551214142520 is 25241412155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130001216 + ... + 130005455.

It is an arithmetic number, because the mean of its divisors is an integer number (39488513310).

Almost surely, 2^551214142520 is an apocalyptic number.

It is an amenable number.

551214142520 is an abundant number, since it is smaller than the sum of its proper divisors (712418283400).

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

551214142520 is a wasteful number, since it uses less digits than its factorization.

551214142520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260006735 (or 260006731 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 551214142520 its reverse (25241412155), we get a palindrome (576455554675).

The spelling of 551214142520 in words is "five hundred fifty-one billion, two hundred fourteen million, one hundred forty-two thousand, five hundred twenty".