5263401561 has 8 divisors (see below), whose sum is σ = 7655856864. Its totient is φ = 3189940320.

The previous prime is 5263401553. The next prime is 5263401571. The reversal of 5263401561 is 1651043625.

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

It is not a de Polignac number, because 5263401561 - 2³ = 5263401553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 159497017 = 5263401561 / (5 + 2 + 6 + 3 + 4 + 0 + 1 + 5 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (5263401551) 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, 79748476 + ... + 79748541.

It is an arithmetic number, because the mean of its divisors is an integer number (956982108).

Almost surely, 2^5263401561 is an apocalyptic number.

It is an amenable number.

5263401561 is a deficient number, since it is larger than the sum of its proper divisors (2392455303).

5263401561 is a wasteful number, since it uses less digits than its factorization.

5263401561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159497031.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 5263401561 is about 72549.3043453898. The cubic root of 5263401561 is about 1739.4909288271.

The spelling of 5263401561 in words is "five billion, two hundred sixty-three million, four hundred one thousand, five hundred sixty-one".