50201604 has 18 divisors (see below), whose sum is σ = 126898590. Its totient is φ = 16733856.

The previous prime is 50201603. The next prime is 50201621. The reversal of 50201604 is 40610205.

It is a happy number.

50201604 is a `hidden beast` number, since 502 + 0 + 160 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29680704 + 20520900 = 5448^2 + 4530^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50201603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 697209 + ... + 697280.

Almost surely, 2^50201604 is an apocalyptic number.

It is an amenable number.

50201604 is an abundant number, since it is smaller than the sum of its proper divisors (76696986).

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

50201604 is a wasteful number, since it uses less digits than its factorization.

50201604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394499 (or 1394494 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 50201604 is about 7085.3090264293. The cubic root of 50201604 is about 368.8976295220.

Adding to 50201604 its reverse (40610205), we get a palindrome (90811809).

It can be divided in two parts, 50201 and 604, that added together give a palindrome (50805).

The spelling of 50201604 in words is "fifty million, two hundred one thousand, six hundred four".