1025375949 has 64 divisors (see below), whose sum is σ = 1720051200. Its totient is φ = 598980096.

The previous prime is 1025375921. The next prime is 1025375963. The reversal of 1025375949 is 9495735201.

It is a happy number.

1025375949 is a `hidden beast` number, since 1 + 0 + 2 + 53 + 7 + 594 + 9 = 666.

It is not a de Polignac number, because 1025375949 - 2⁸ = 1025375693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025375909) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1267057 + ... + 1267865.

It is an arithmetic number, because the mean of its divisors is an integer number (26875800).

Almost surely, 2^1025375949 is an apocalyptic number.

It is an amenable number.

1025375949 is a deficient number, since it is larger than the sum of its proper divisors (694675251).

1025375949 is a wasteful number, since it uses less digits than its factorization.

1025375949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 1025375949 is about 32021.4919858523. The cubic root of 1025375949 is about 1008.3880928362.

The spelling of 1025375949 in words is "one billion, twenty-five million, three hundred seventy-five thousand, nine hundred forty-nine".