4025501520 has 40 divisors (see below), whose sum is σ = 12479055456. Its totient is φ = 1073467008.

The previous prime is 4025501503. The next prime is 4025501533. The reversal of 4025501520 is 251055204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8386222 + ... + 8386701.

Almost surely, 2^4025501520 is an apocalyptic number.

4025501520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4025501520 is an abundant number, since it is smaller than the sum of its proper divisors (8453553936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4025501520 is a wasteful number, since it uses less digits than its factorization.

4025501520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16772939 (or 16772933 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 4025501520 is about 63446.8401104421. The cubic root of 4025501520 is about 1590.7673365962.

Adding to 4025501520 its reverse (251055204), we get a palindrome (4276556724).

The spelling of 4025501520 in words is "four billion, twenty-five million, five hundred one thousand, five hundred twenty".