255772445 has 8 divisors (see below), whose sum is σ = 307928544. Its totient is φ = 203950224.

The previous prime is 255772427. The next prime is 255772457. The reversal of 255772445 is 544277552.

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

It is a cyclic number.

It is not a de Polignac number, because 255772445 - 2¹⁸ = 255510301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81779 + ... + 84848.

It is an arithmetic number, because the mean of its divisors is an integer number (38491068).

Almost surely, 2^255772445 is an apocalyptic number.

It is an amenable number.

255772445 is a deficient number, since it is larger than the sum of its proper divisors (52156099).

255772445 is a wasteful number, since it uses less digits than its factorization.

255772445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166939.

The product of its digits is 392000, while the sum is 41.

The square root of 255772445 is about 15992.8873253081. The cubic root of 255772445 is about 634.7722290542.

The spelling of 255772445 in words is "two hundred fifty-five million, seven hundred seventy-two thousand, four hundred forty-five".