252705020090 has 32 divisors (see below), whose sum is σ = 471782983680. Its totient is φ = 97341557824.

The previous prime is 252705020069. The next prime is 252705020093. The reversal of 252705020090 is 90020507252.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252705020093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026524 + ... + 1248663.

It is an arithmetic number, because the mean of its divisors is an integer number (14743218240).

Almost surely, 2^252705020090 is an apocalyptic number.

252705020090 is a deficient number, since it is larger than the sum of its proper divisors (219077963590).

252705020090 is a wasteful number, since it uses less digits than its factorization.

252705020090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275606.

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 252705020090 in words is "two hundred fifty-two billion, seven hundred five million, twenty thousand, ninety".