3561503401 has 4 divisors (see below), whose sum is σ = 3574361092. Its totient is φ = 3548645712.

The previous prime is 3561503353. The next prime is 3561503411. The reversal of 3561503401 is 1043051653.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1870649001 + 1690854400 = 43251^2 + 41120^2 .

It is a cyclic number.

It is not a de Polignac number, because 3561503401 - 2¹³ = 3561495209 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 3561503401.

It is not an unprimeable number, because it can be changed into a prime (3561503411) 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, 6428430 + ... + 6428983.

It is an arithmetic number, because the mean of its divisors is an integer number (893590273).

Almost surely, 2^3561503401 is an apocalyptic number.

It is an amenable number.

3561503401 is a deficient number, since it is larger than the sum of its proper divisors (12857691).

3561503401 is a wasteful number, since it uses less digits than its factorization.

3561503401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12857690.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 3561503401 is about 59678.3327598887. The cubic root of 3561503401 is about 1527.1362555352.

The spelling of 3561503401 in words is "three billion, five hundred sixty-one million, five hundred three thousand, four hundred one".