140252025506 has 4 divisors (see below), whose sum is σ = 210378038262. Its totient is φ = 70126012752.

The previous prime is 140252025493. The next prime is 140252025509. The reversal of 140252025506 is 605520252041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 605520252041 = 149 ⋅4063894309.

It can be written as a sum of positive squares in only one way, i.e., 90395834281 + 49856191225 = 300659^2 + 223285^2 .

It is a super-3 number, since 3×140252025506³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (140252025509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35063006375 + ... + 35063006378.

Almost surely, 2^140252025506 is an apocalyptic number.

140252025506 is a deficient number, since it is larger than the sum of its proper divisors (70126012756).

140252025506 is an equidigital number, since it uses as much as digits as its factorization.

140252025506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70126012755.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 140252025506 its reverse (605520252041), we get a palindrome (745772277547).

The spelling of 140252025506 in words is "one hundred forty billion, two hundred fifty-two million, twenty-five thousand, five hundred six".