51542825510 has 96 divisors (see below), whose sum is σ = 107150379552. Its totient is φ = 17701263360.

The previous prime is 51542825483. The next prime is 51542825513. The reversal of 51542825510 is 1552824515.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51542825513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14015792 + ... + 14019468.

It is an arithmetic number, because the mean of its divisors is an integer number (1116149787).

Almost surely, 2^51542825510 is an apocalyptic number.

51542825510 is an abundant number, since it is smaller than the sum of its proper divisors (55607554042).

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

51542825510 is a wasteful number, since it uses less digits than its factorization.

51542825510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086 (or 4067 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 38.

The spelling of 51542825510 in words is "fifty-one billion, five hundred forty-two million, eight hundred twenty-five thousand, five hundred ten".