1047656925 has 36 divisors (see below), whose sum is σ = 2144540320. Its totient is φ = 478928160.

The previous prime is 1047656921. The next prime is 1047656927. The reversal of 1047656925 is 5296567401.

1047656925 is a `hidden beast` number, since 10 + 4 + 76 + 569 + 2 + 5 = 666.

It is not a de Polignac number, because 1047656925 - 2² = 1047656921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047656921) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 331015 + ... + 334164.

Almost surely, 2^1047656925 is an apocalyptic number.

1047656925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1047656925 is an abundant number, since it is smaller than the sum of its proper divisors (1096883395).

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

1047656925 is a wasteful number, since it uses less digits than its factorization.

1047656925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665202 (or 665194 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 1047656925 is about 32367.5288676785. The cubic root of 1047656925 is about 1015.6397642666.

The spelling of 1047656925 in words is "one billion, forty-seven million, six hundred fifty-six thousand, nine hundred twenty-five".