2520525401 has 8 divisors (see below), whose sum is σ = 2691552000. Its totient is φ = 2355106320.

The previous prime is 2520525391. The next prime is 2520525409. The reversal of 2520525401 is 1045250252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2520525401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2520525409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1400951 + ... + 1402748.

It is an arithmetic number, because the mean of its divisors is an integer number (336444000).

Almost surely, 2^2520525401 is an apocalyptic number.

It is an amenable number.

2520525401 is a deficient number, since it is larger than the sum of its proper divisors (171026599).

2520525401 is a wasteful number, since it uses less digits than its factorization.

2520525401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803759.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2520525401 is about 50204.8344385279. The cubic root of 2520525401 is about 1360.9129900792.

Adding to 2520525401 its reverse (1045250252), we get a palindrome (3565775653).

The spelling of 2520525401 in words is "two billion, five hundred twenty million, five hundred twenty-five thousand, four hundred one".