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553225001 = 779032143
BaseRepresentation
bin100000111110011…
…000101100101001
31102112222202000212
4200332120230221
52113111200001
6130521310505
716465222610
oct4076305451
91375882025
10553225001
1126431014a
12135335435
138a7cc394
145368c877
153387d7bb
hex20f98b29

553225001 has 4 divisors (see below), whose sum is σ = 632257152. Its totient is φ = 474192852.

The previous prime is 553224961. The next prime is 553225009. The reversal of 553225001 is 100522355.

Adding to 553225001 its reverse (100522355), we get a palindrome (653747356).

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 553225001 - 26 = 553224937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (553225009) 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, 39516065 + ... + 39516078.

It is an arithmetic number, because the mean of its divisors is an integer number (158064288).

Almost surely, 2553225001 is an apocalyptic number.

It is an amenable number.

553225001 is a deficient number, since it is larger than the sum of its proper divisors (79032151).

553225001 is an equidigital number, since it uses as much as digits as its factorization.

553225001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79032150.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 553225001 is about 23520.7355539745. The cubic root of 553225001 is about 820.9195519067.

The spelling of 553225001 in words is "five hundred fifty-three million, two hundred twenty-five thousand, one".

Divisors: 1 7 79032143 553225001