551420032 has 32 divisors (see below), whose sum is σ = 1146300480. Its totient is φ = 263721216.

The previous prime is 551420017. The next prime is 551420039. The reversal of 551420032 is 230024155.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 551419985 and 551420012.

It is not an unprimeable number, because it can be changed into a prime (551420039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90708 + ... + 96595.

It is an arithmetic number, because the mean of its divisors is an integer number (35821890).

Almost surely, 2^551420032 is an apocalyptic number.

It is an amenable number.

551420032 is an abundant number, since it is smaller than the sum of its proper divisors (594880448).

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

551420032 is a wasteful number, since it uses less digits than its factorization.

551420032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187340 (or 187328 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 551420032 is about 23482.3344665730. The cubic root of 551420032 is about 820.0257933588.

Adding to 551420032 its reverse (230024155), we get a palindrome (781444187).

The spelling of 551420032 in words is "five hundred fifty-one million, four hundred twenty thousand, thirty-two".