387505255 has 8 divisors (see below), whose sum is σ = 477574272. Its totient is φ = 301625568.

The previous prime is 387505249. The next prime is 387505267. The reversal of 387505255 is 552505783.

It is a happy number.

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 387505255 - 2¹⁵ = 387472487 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, 1047127 + ... + 1047496.

It is an arithmetic number, because the mean of its divisors is an integer number (59696784).

Almost surely, 2^387505255 is an apocalyptic number.

387505255 is a deficient number, since it is larger than the sum of its proper divisors (90069017).

387505255 is a wasteful number, since it uses less digits than its factorization.

387505255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094665.

The product of its (nonzero) digits is 210000, while the sum is 40.

The square root of 387505255 is about 19685.1531617105. The cubic root of 387505255 is about 729.0531635174.

The spelling of 387505255 in words is "three hundred eighty-seven million, five hundred five thousand, two hundred fifty-five".