1025491574 has 16 divisors (see below), whose sum is σ = 1558958400. Its totient is φ = 505849344.

The previous prime is 1025491573. The next prime is 1025491583. The reversal of 1025491574 is 4751945201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025491573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325334 + ... + 328470.

It is an arithmetic number, because the mean of its divisors is an integer number (97434900).

Almost surely, 2^1025491574 is an apocalyptic number.

1025491574 is a deficient number, since it is larger than the sum of its proper divisors (533466826).

1025491574 is a wasteful number, since it uses less digits than its factorization.

1025491574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5287.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 1025491574 is about 32023.2973630137. The cubic root of 1025491574 is about 1008.4259945415.

The spelling of 1025491574 in words is "one billion, twenty-five million, four hundred ninety-one thousand, five hundred seventy-four".