203225045451 has 16 divisors (see below), whose sum is σ = 271295122464. Its totient is φ = 135319244544.

The previous prime is 203225045389. The next prime is 203225045479. The reversal of 203225045451 is 154540522302.

It is a happy number.

It is not a de Polignac number, because 203225045451 - 2¹³ = 203225037259 is a prime.

It is a super-2 number, since 2×203225045451² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203225045651) 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, 14331801 + ... + 14345973.

It is an arithmetic number, because the mean of its divisors is an integer number (16955945154).

Almost surely, 2^203225045451 is an apocalyptic number.

203225045451 is a deficient number, since it is larger than the sum of its proper divisors (68070077013).

203225045451 is a wasteful number, since it uses less digits than its factorization.

203225045451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19630.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 203225045451 its reverse (154540522302), we get a palindrome (357765567753).

The spelling of 203225045451 in words is "two hundred three billion, two hundred twenty-five million, forty-five thousand, four hundred fifty-one".