1255725504 has 420 divisors, whose sum is σ = 4355991288. Its totient is φ = 354585600.

The previous prime is 1255725479. The next prime is 1255725539. The reversal of 1255725504 is 4055275521.

1255725504 is a `hidden beast` number, since 125 + 5 + 7 + 25 + 504 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 20585634 + ... + 20585694.

Almost surely, 2^1255725504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255725504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2177995644).

1255725504 is an abundant number, since it is smaller than the sum of its proper divisors (3100265784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255725504 is a wasteful number, since it uses less digits than its factorization.

1255725504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 36.

The square root of 1255725504 is about 35436.2174053609. The cubic root of 1255725504 is about 1078.8595368534.

The spelling of 1255725504 in words is "one billion, two hundred fifty-five million, seven hundred twenty-five thousand, five hundred four".