2051573401 has 8 divisors (see below), whose sum is σ = 2072435400. Its totient is φ = 2030806272.

The previous prime is 2051573399. The next prime is 2051573437. The reversal of 2051573401 is 1043751502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 51337225 + 2000236176 = 7165^2 + 44724^2 .

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 2051573401 - 2¹ = 2051573399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2051573401.

It is not an unprimeable number, because it can be changed into a prime (2051573201) 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, 20161 + ... + 67153.

It is an arithmetic number, because the mean of its divisors is an integer number (259054425).

Almost surely, 2^2051573401 is an apocalyptic number.

It is an amenable number.

2051573401 is a deficient number, since it is larger than the sum of its proper divisors (20861999).

2051573401 is a wasteful number, since it uses less digits than its factorization.

2051573401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47435.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 2051573401 is about 45294.2976653795. The cubic root of 2051573401 is about 1270.6590088368.

The spelling of 2051573401 in words is "two billion, fifty-one million, five hundred seventy-three thousand, four hundred one".