140025001525 has 6 divisors (see below), whose sum is σ = 173631001922. Its totient is φ = 112020001200.

The previous prime is 140025001451. The next prime is 140025001531. The reversal of 140025001525 is 525100520041.

It can be written as a sum of positive squares in 3 ways, for example, as 11469767409 + 128555234116 = 107097^2 + 358546^2 .

It is not a de Polignac number, because 140025001525 - 2²⁷ = 139890783797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 5601000061 = 140025001525 / (1 + 4 + 0 + 0 + 2 + 5 + 0 + 0 + 1 + 5 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140025001525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2800500006 + ... + 2800500055.

Almost surely, 2^140025001525 is an apocalyptic number.

It is an amenable number.

140025001525 is a deficient number, since it is larger than the sum of its proper divisors (33606000397).

140025001525 is an equidigital number, since it uses as much as digits as its factorization.

140025001525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601000071 (or 5601000066 counting only the distinct ones).

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

Adding to 140025001525 its reverse (525100520041), we get a palindrome (665125521566).

The spelling of 140025001525 in words is "one hundred forty billion, twenty-five million, one thousand, five hundred twenty-five".