255607407 has 40 divisors (see below), whose sum is σ = 426766032. Its totient is φ = 151113600.

The previous prime is 255607397. The next prime is 255607409. The reversal of 255607407 is 704706552.

255607407 is a `hidden beast` number, since 2 + 5 + 5 + 607 + 40 + 7 = 666.

It is not a de Polignac number, because 255607407 - 2⁶ = 255607343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255607409) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 33033 + ... + 40029.

Almost surely, 2^255607407 is an apocalyptic number.

255607407 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

255607407 is a deficient number, since it is larger than the sum of its proper divisors (171158625).

255607407 is a wasteful number, since it uses less digits than its factorization.

255607407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7061 (or 7052 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 255607407 is about 15987.7267614880. The cubic root of 255607407 is about 634.6356700649.

The spelling of 255607407 in words is "two hundred fifty-five million, six hundred seven thousand, four hundred seven".