2554770561 has 48 divisors (see below), whose sum is σ = 4060289664. Its totient is φ = 1398684672.

The previous prime is 2554770551. The next prime is 2554770583. The reversal of 2554770561 is 1650774552.

It is a happy number.

It is not a de Polignac number, because 2554770561 - 2¹⁵ = 2554737793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2554770511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4140325 + ... + 4140941.

It is an arithmetic number, because the mean of its divisors is an integer number (84589368).

Almost surely, 2^2554770561 is an apocalyptic number.

2554770561 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2554770561 is a deficient number, since it is larger than the sum of its proper divisors (1505519103).

2554770561 is an equidigital number, since it uses as much as digits as its factorization.

2554770561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 42.

The square root of 2554770561 is about 50544.7382127952. The cubic root of 2554770561 is about 1367.0486416407.

The spelling of 2554770561 in words is "two billion, five hundred fifty-four million, seven hundred seventy thousand, five hundred sixty-one".