52121050431 has 16 divisors (see below), whose sum is σ = 73601248608. Its totient is φ = 32695142400.

The previous prime is 52121050427. The next prime is 52121050469. The reversal of 52121050431 is 13405012125.

It is a happy number.

It is not a de Polignac number, because 52121050431 - 2² = 52121050427 is a prime.

It is a super-2 number, since 2×52121050431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52121050411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77991 + ... + 332151.

It is an arithmetic number, because the mean of its divisors is an integer number (4600078038).

Almost surely, 2^52121050431 is an apocalyptic number.

52121050431 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

52121050431 is a deficient number, since it is larger than the sum of its proper divisors (21480198177).

52121050431 is a wasteful number, since it uses less digits than its factorization.

52121050431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258202.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 52121050431 its reverse (13405012125), we get a palindrome (65526062556).

The spelling of 52121050431 in words is "fifty-two billion, one hundred twenty-one million, fifty thousand, four hundred thirty-one".