2054551 has 4 divisors (see below), whose sum is σ = 2104704. Its totient is φ = 2004400.

The previous prime is 2054543. The next prime is 2054579. The reversal of 2054551 is 1554502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1554502 = 2 ⋅777251.

It is a cyclic number.

It is not a de Polignac number, because 2054551 - 2³ = 2054543 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 (2054581) 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, 25015 + ... + 25096.

It is an arithmetic number, because the mean of its divisors is an integer number (526176).

2^2054551 is an apocalyptic number.

2054551 is a deficient number, since it is larger than the sum of its proper divisors (50153).

2054551 is an equidigital number, since it uses as much as digits as its factorization.

2054551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50152.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 2054551 is about 1433.3705033940. The cubic root of 2054551 is about 127.1273445223.

The spelling of 2054551 in words is "two million, fifty-four thousand, five hundred fifty-one".