2521013401 has 8 divisors (see below), whose sum is σ = 2610918144. Its totient is φ = 2432619840.

The previous prime is 2521013399. The next prime is 2521013437. The reversal of 2521013401 is 1043101252.

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

It is a cyclic number.

It is not a de Polignac number, because 2521013401 - 2¹ = 2521013399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2521013701) 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, 374400 + ... + 381073.

It is an arithmetic number, because the mean of its divisors is an integer number (326364768).

Almost surely, 2^2521013401 is an apocalyptic number.

It is an amenable number.

2521013401 is a deficient number, since it is larger than the sum of its proper divisors (89904743).

2521013401 is an equidigital number, since it uses as much as digits as its factorization.

2521013401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755591.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2521013401 is about 50209.6942930347. The cubic root of 2521013401 is about 1361.0008133934. Note that the first 3 decimals are identical.

Adding to 2521013401 its reverse (1043101252), we get a palindrome (3564114653).

The spelling of 2521013401 in words is "two billion, five hundred twenty-one million, thirteen thousand, four hundred one".