253656023004 has 18 divisors (see below), whose sum is σ = 641186058240. Its totient is φ = 84552007656.

The previous prime is 253656022967. The next prime is 253656023017. The reversal of 253656023004 is 400320656352.

253656023004 is a `hidden beast` number, since 2 + 5 + 365 + 60 + 230 + 0 + 4 = 666.

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 (36), and also a Moran number because the ratio is a prime number: 7046000639 = 253656023004 / (2 + 5 + 3 + 6 + 5 + 6 + 0 + 2 + 3 + 0 + 0 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 253656023004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3523000284 + ... + 3523000355.

It is an arithmetic number, because the mean of its divisors is an integer number (35621447680).

Almost surely, 2^253656023004 is an apocalyptic number.

It is an amenable number.

253656023004 is an abundant number, since it is smaller than the sum of its proper divisors (387530035236).

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

253656023004 is a wasteful number, since it uses less digits than its factorization.

253656023004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7046000649 (or 7046000644 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 253656023004 its reverse (400320656352), we get a palindrome (653976679356).

The spelling of 253656023004 in words is "two hundred fifty-three billion, six hundred fifty-six million, twenty-three thousand, four".