140555025 has 72 divisors (see below), whose sum is σ = 280633080. Its totient is φ = 66769920.

The previous prime is 140555021. The next prime is 140555029. The reversal of 140555025 is 520555041.

It is an interprime number because it is at equal distance from previous prime (140555021) and next prime (140555029).

It can be written as a sum of positive squares in 12 ways, for example, as 73822464 + 66732561 = 8592^2 + 8169^2 .

It is not a de Polignac number, because 140555025 - 2² = 140555021 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140555025.

It is not an unprimeable number, because it can be changed into a prime (140555021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 83997 + ... + 85653.

Almost surely, 2^140555025 is an apocalyptic number.

140555025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140555025 is a deficient number, since it is larger than the sum of its proper divisors (140078055).

140555025 is a wasteful number, since it uses less digits than its factorization.

140555025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715 (or 1707 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 140555025 is about 11855.5904534528. The cubic root of 140555025 is about 519.9346873098.

The spelling of 140555025 in words is "one hundred forty million, five hundred fifty-five thousand, twenty-five".