1025487100 has 54 divisors (see below), whose sum is σ = 2446027472. Its totient is φ = 372900000.

The previous prime is 1025487049. The next prime is 1025487119. The reversal of 1025487100 is 17845201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30276 + ... + 54475.

Almost surely, 2^1025487100 is an apocalyptic number.

1025487100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025487100 is an abundant number, since it is smaller than the sum of its proper divisors (1420540372).

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

1025487100 is a wasteful number, since it uses less digits than its factorization.

1025487100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84787 (or 84769 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 1025487100 is about 32023.2275075452. The cubic root of 1025487100 is about 1008.4245280238.

The spelling of 1025487100 in words is "one billion, twenty-five million, four hundred eighty-seven thousand, one hundred".