1550423005 has 8 divisors (see below), whose sum is σ = 1861033824. Its totient is φ = 1239987600.

The previous prime is 1550422963. The next prime is 1550423029. The reversal of 1550423005 is 5003240551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1550423005 - 2⁹ = 1550422493 is a prime.

It is a super-2 number, since 2×1550423005² = 4807622988866460050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23551 + ... + 60460.

It is an arithmetic number, because the mean of its divisors is an integer number (232629228).

Almost surely, 2^1550423005 is an apocalyptic number.

It is an amenable number.

1550423005 is a deficient number, since it is larger than the sum of its proper divisors (310610819).

1550423005 is an equidigital number, since it uses as much as digits as its factorization.

1550423005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87707.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 1550423005 is about 39375.4111724563. The cubic root of 1550423005 is about 1157.3997954017.

Adding to 1550423005 its reverse (5003240551), we get a palindrome (6553663556).

The spelling of 1550423005 in words is "one billion, five hundred fifty million, four hundred twenty-three thousand, five".