2520140401 has 9 divisors (see below), whose sum is σ = 2678011041. Its totient is φ = 2371093632.

The previous prime is 2520140393. The next prime is 2520140417. The reversal of 2520140401 is 1040410252.

The square root of 2520140401 is 50201.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 887980401 + 1632160000 = 29799^2 + 40400^2 .

It is not a de Polignac number, because 2520140401 - 2³ = 2520140393 is a prime.

It is a super-2 number, since 2×2520140401² = 12702215281504881602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520140461) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 851941 + ... + 854893.

Almost surely, 2^2520140401 is an apocalyptic number.

2520140401 is the 50201-st square number.

2520140401 is the 25101-st centered octagonal number.

It is an amenable number.

2520140401 is a deficient number, since it is larger than the sum of its proper divisors (157870640).

2520140401 is an frugal number, since it uses more digits than its factorization.

2520140401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5940 (or 2970 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The cubic root of 2520140401 is about 1360.8436952435.

Adding to 2520140401 its reverse (1040410252), we get a palindrome (3560550653).

The spelling of 2520140401 in words is "two billion, five hundred twenty million, one hundred forty thousand, four hundred one".