2720578551 has 16 divisors (see below), whose sum is σ = 3657638400. Its totient is φ = 1798679520.

The previous prime is 2720578547. The next prime is 2720578573. The reversal of 2720578551 is 1558750272.

It is not a de Polignac number, because 2720578551 - 2² = 2720578547 is a prime.

It is a super-2 number, since 2×2720578551² = 14803095304322519202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720578951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178341 + ... + 192993.

It is an arithmetic number, because the mean of its divisors is an integer number (228602400).

Almost surely, 2^2720578551 is an apocalyptic number.

2720578551 is a deficient number, since it is larger than the sum of its proper divisors (937059849).

2720578551 is a wasteful number, since it uses less digits than its factorization.

2720578551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15166.

The product of its (nonzero) digits is 196000, while the sum is 42.

The square root of 2720578551 is about 52159.1655512241. The cubic root of 2720578551 is about 1396.0053733274.

The spelling of 2720578551 in words is "two billion, seven hundred twenty million, five hundred seventy-eight thousand, five hundred fifty-one".