52101213542530 has 16 divisors (see below), whose sum is σ = 93787547043960. Its totient is φ = 20839293713152.

The previous prime is 52101213542501. The next prime is 52101213542533. The reversal of 52101213542530 is 3524531210125.

It can be written as a sum of positive squares in 4 ways, for example, as 23896542551281 + 28204670991249 = 4888409^2 + 5310807^2 .

It is a super-2 number, since 2×52101213542530² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52101213542533) 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, 148779349 + ... + 149129128.

Almost surely, 2^{52101213542530} is an apocalyptic number.

52101213542530 is a deficient number, since it is larger than the sum of its proper divisors (41686333501430).

52101213542530 is a wasteful number, since it uses less digits than its factorization.

52101213542530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297925973.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 52101213542530 its reverse (3524531210125), we get a palindrome (55625744752655).

The spelling of 52101213542530 in words is "fifty-two trillion, one hundred one billion, two hundred thirteen million, five hundred forty-two thousand, five hundred thirty".