2027478551 has 4 divisors (see below), whose sum is σ = 2317118352. Its totient is φ = 1737838752.

The previous prime is 2027478487. The next prime is 2027478571. The reversal of 2027478551 is 1558747202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1558747202 = 2 ⋅779373601.

It is a cyclic number.

It is not a de Polignac number, because 2027478551 - 2⁶ = 2027478487 is a prime.

It is a super-2 number, since 2×2027478551² = 8221338549530119202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2027478499 and 2027478508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2027478571) 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, 144819890 + ... + 144819903.

It is an arithmetic number, because the mean of its divisors is an integer number (579279588).

Almost surely, 2^2027478551 is an apocalyptic number.

2027478551 is a deficient number, since it is larger than the sum of its proper divisors (289639801).

2027478551 is an equidigital number, since it uses as much as digits as its factorization.

2027478551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289639800.

The product of its (nonzero) digits is 156800, while the sum is 41.

The square root of 2027478551 is about 45027.5310338020. The cubic root of 2027478551 is about 1265.6649580889.

The spelling of 2027478551 in words is "two billion, twenty-seven million, four hundred seventy-eight thousand, five hundred fifty-one".