2521001402 has 16 divisors (see below), whose sum is σ = 3838290624. Its totient is φ = 1241604000.

The previous prime is 2521001389. The next prime is 2521001419. The reversal of 2521001402 is 2041001252.

It is a super-3 number, since 3×2521001402³ (a number of 29 digits) contains 333 as substring.

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, 158702 + ... + 173862.

It is an arithmetic number, because the mean of its divisors is an integer number (239893164).

Almost surely, 2^2521001402 is an apocalyptic number.

2521001402 is a deficient number, since it is larger than the sum of its proper divisors (1317289222).

2521001402 is a wasteful number, since it uses less digits than its factorization.

2521001402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16405.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2521001402 is about 50209.5748040152. The cubic root of 2521001402 is about 1360.9986541196.

Adding to 2521001402 its reverse (2041001252), we get a palindrome (4562002654).

The spelling of 2521001402 in words is "two billion, five hundred twenty-one million, one thousand, four hundred two".