635159052 has 108 divisors (see below), whose sum is σ = 1780853256. Its totient is φ = 189296640.

The previous prime is 635159047. The next prime is 635159059. The reversal of 635159052 is 250951536.

635159052 is a `hidden beast` number, since 6 + 3 + 515 + 90 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 635158998 and 635159016.

It is not an unprimeable number, because it can be changed into a prime (635159059) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2471308 + ... + 2471564.

It is an arithmetic number, because the mean of its divisors is an integer number (16489382).

Almost surely, 2^635159052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 635159052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (890426628).

635159052 is an abundant number, since it is smaller than the sum of its proper divisors (1145694204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

635159052 is a wasteful number, since it uses less digits than its factorization.

635159052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The square root of 635159052 is about 25202.3620321588. The cubic root of 635159052 is about 859.5955606871.

The spelling of 635159052 in words is "six hundred thirty-five million, one hundred fifty-nine thousand, fifty-two".