2547533780 has 24 divisors (see below), whose sum is σ = 5836168800. Its totient is φ = 926375840.

The previous prime is 2547533773. The next prime is 2547533819. The reversal of 2547533780 is 873357452.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5789630 + ... + 5790069.

It is an arithmetic number, because the mean of its divisors is an integer number (243173700).

Almost surely, 2^2547533780 is an apocalyptic number.

2547533780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2547533780 is an abundant number, since it is smaller than the sum of its proper divisors (3288635020).

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

2547533780 is a wasteful number, since it uses less digits than its factorization.

2547533780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11579719 (or 11579717 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 44.

The square root of 2547533780 is about 50473.0995679877. The cubic root of 2547533780 is about 1365.7566290045.

The spelling of 2547533780 in words is "two billion, five hundred forty-seven million, five hundred thirty-three thousand, seven hundred eighty".