12542501050 has 24 divisors (see below), whose sum is σ = 23367166236. Its totient is φ = 5008803840.

The previous prime is 12542501047. The next prime is 12542501057. The reversal of 12542501050 is 5010524521.

It can be written as a sum of positive squares in 6 ways, for example, as 34539129 + 12507961921 = 5877^2 + 111839^2 .

It is a super-2 number, since 2×12542501050² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12542501057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173959 + ... + 235258.

Almost surely, 2^12542501050 is an apocalyptic number.

12542501050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12542501050 is a deficient number, since it is larger than the sum of its proper divisors (10824665186).

12542501050 is a wasteful number, since it uses less digits than its factorization.

12542501050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409842 (or 409837 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 12542501050 in words is "twelve billion, five hundred forty-two million, five hundred one thousand, fifty".