7025132857 has 4 divisors (see below), whose sum is σ = 7330573440. Its totient is φ = 6719692276.

The previous prime is 7025132813. The next prime is 7025132879. The reversal of 7025132857 is 7582315207.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7582315207 = 467 ⋅16236221.

It is a cyclic number.

It is not a de Polignac number, because 7025132857 - 2¹¹ = 7025130809 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7025132897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152720257 + ... + 152720302.

It is an arithmetic number, because the mean of its divisors is an integer number (1832643360).

Almost surely, 2^7025132857 is an apocalyptic number.

It is an amenable number.

7025132857 is a deficient number, since it is larger than the sum of its proper divisors (305440583).

7025132857 is a wasteful number, since it uses less digits than its factorization.

7025132857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305440582.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 7025132857 is about 83816.0656258691. The cubic root of 7025132857 is about 1915.2178494948.

The spelling of 7025132857 in words is "seven billion, twenty-five million, one hundred thirty-two thousand, eight hundred fifty-seven".