2555575740 has 72 divisors (see below), whose sum is σ = 7850082240. Its totient is φ = 672856704.

The previous prime is 2555575721. The next prime is 2555575769. The reversal of 2555575740 is 475755552.

2555575740 is a `hidden beast` number, since 2 + 5 + 5 + 5 + 575 + 74 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75639 + ... + 104078.

It is an arithmetic number, because the mean of its divisors is an integer number (109028920).

Almost surely, 2^2555575740 is an apocalyptic number.

2555575740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555575740 is an abundant number, since it is smaller than the sum of its proper divisors (5294506500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2555575740 is a wasteful number, since it uses less digits than its factorization.

2555575740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179811 (or 179806 counting only the distinct ones).

The product of its (nonzero) digits is 1225000, while the sum is 45.

The square root of 2555575740 is about 50552.7025983775. The cubic root of 2555575740 is about 1367.1922426955.

The spelling of 2555575740 in words is "two billion, five hundred fifty-five million, five hundred seventy-five thousand, seven hundred forty".