655540541 has 8 divisors (see below), whose sum is σ = 661520160. Its totient is φ = 649579248.

The previous prime is 655540531. The next prime is 655540559. The reversal of 655540541 is 145045556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 655540541 - 2²² = 651346237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655540531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73190 + ... + 81656.

It is an arithmetic number, because the mean of its divisors is an integer number (82690020).

Almost surely, 2^655540541 is an apocalyptic number.

It is an amenable number.

655540541 is a deficient number, since it is larger than the sum of its proper divisors (5979619).

655540541 is a wasteful number, since it uses less digits than its factorization.

655540541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9163.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 655540541 is about 25603.5259485876. The cubic root of 655540541 is about 868.6933929543.

The spelling of 655540541 in words is "six hundred fifty-five million, five hundred forty thousand, five hundred forty-one".