2551145401 has 4 divisors (see below), whose sum is σ = 2915594752. Its totient is φ = 2186696052.

The previous prime is 2551145357. The next prime is 2551145413. The reversal of 2551145401 is 1045411552.

2551145401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2551145401 - 2¹³ = 2551137209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2551145401.

It is not an unprimeable number, because it can be changed into a prime (2551142401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182224665 + ... + 182224678.

It is an arithmetic number, because the mean of its divisors is an integer number (728898688).

Almost surely, 2^2551145401 is an apocalyptic number.

It is an amenable number.

2551145401 is a deficient number, since it is larger than the sum of its proper divisors (364449351).

2551145401 is an equidigital number, since it uses as much as digits as its factorization.

2551145401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364449350.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 2551145401 is about 50508.8645784084. The cubic root of 2551145401 is about 1366.4017321531.

Adding to 2551145401 its reverse (1045411552), we get a palindrome (3596556953).

The spelling of 2551145401 in words is "two billion, five hundred fifty-one million, one hundred forty-five thousand, four hundred one".