1005571425 has 24 divisors (see below), whose sum is σ = 1664240704. Its totient is φ = 535757760.

The previous prime is 1005571393. The next prime is 1005571429. The reversal of 1005571425 is 5241755001.

It is not a de Polignac number, because 1005571425 - 2⁵ = 1005571393 is a prime.

It is a super-2 number, since 2×1005571425² = 2022347781553061250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1005571392 and 1005571401.

It is not an unprimeable number, because it can be changed into a prime (1005571429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73419 + ... + 86031.

Almost surely, 2^1005571425 is an apocalyptic number.

1005571425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1005571425 is a deficient number, since it is larger than the sum of its proper divisors (658669279).

1005571425 is a wasteful number, since it uses less digits than its factorization.

1005571425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13689 (or 13684 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 1005571425 is about 31710.7462069249. The cubic root of 1005571425 is about 1001.8537033274.

The spelling of 1005571425 in words is "one billion, five million, five hundred seventy-one thousand, four hundred twenty-five".