1825725501 has 40 divisors (see below), whose sum is σ = 2822966784. Its totient is φ = 1174681440.

The previous prime is 1825725493. The next prime is 1825725509. The reversal of 1825725501 is 1055275281.

1825725501 is a `hidden beast` number, since 1 + 82 + 5 + 72 + 5 + 501 = 666.

It is an interprime number because it is at equal distance from previous prime (1825725493) and next prime (1825725509).

It is not a de Polignac number, because 1825725501 - 2³ = 1825725493 is a prime.

It is a super-4 number, since 4×1825725501⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1825725509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1222111 + ... + 1223603.

Almost surely, 2^1825725501 is an apocalyptic number.

It is an amenable number.

1825725501 is a deficient number, since it is larger than the sum of its proper divisors (997241283).

1825725501 is a wasteful number, since it uses less digits than its factorization.

1825725501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 36.

The square root of 1825725501 is about 42728.5092297871. The cubic root of 1825725501 is about 1222.2081082634.

The spelling of 1825725501 in words is "one billion, eight hundred twenty-five million, seven hundred twenty-five thousand, five hundred one".