51552030054 has 48 divisors (see below), whose sum is σ = 120328262208. Its totient is φ = 14681148048.

The previous prime is 51552030029. The next prime is 51552030059. The reversal of 51552030054 is 45003025515.

It is a happy number.

It is a super-2 number, since 2×51552030054² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51552030059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195324 + ... + 375839.

It is an arithmetic number, because the mean of its divisors is an integer number (2506838796).

Almost surely, 2^51552030054 is an apocalyptic number.

51552030054 is an abundant number, since it is smaller than the sum of its proper divisors (68776232154).

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

51552030054 is a wasteful number, since it uses less digits than its factorization.

51552030054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571489 (or 571482 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 51552030054 its reverse (45003025515), we get a palindrome (96555055569).

The spelling of 51552030054 in words is "fifty-one billion, five hundred fifty-two million, thirty thousand, fifty-four".