1423056551 has 8 divisors (see below), whose sum is σ = 1626998304. Its totient is φ = 1219276800.

The previous prime is 1423056539. The next prime is 1423056589. The reversal of 1423056551 is 1556503241.

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

It is not a de Polignac number, because 1423056551 - 2⁶ = 1423056487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423055551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21050 + ... + 57351.

It is an arithmetic number, because the mean of its divisors is an integer number (203374788).

Almost surely, 2^1423056551 is an apocalyptic number.

1423056551 is a deficient number, since it is larger than the sum of its proper divisors (203941753).

1423056551 is an equidigital number, since it uses as much as digits as its factorization.

1423056551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81001.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1423056551 is about 37723.4217827598. The cubic root of 1423056551 is about 1124.7967503765.

Adding to 1423056551 its reverse (1556503241), we get a palindrome (2979559792).

The spelling of 1423056551 in words is "one billion, four hundred twenty-three million, fifty-six thousand, five hundred fifty-one".