1076525257 has 4 divisors (see below), whose sum is σ = 1076611536. Its totient is φ = 1076438980.

The previous prime is 1076525239. The next prime is 1076525273. The reversal of 1076525257 is 7525256701.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7525256701 = 71 ⋅105989531.

It is a cyclic number.

It is not a de Polignac number, because 1076525257 - 2⁷ = 1076525129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1076525297) 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, 20443 + ... + 50704.

It is an arithmetic number, because the mean of its divisors is an integer number (269152884).

Almost surely, 2^1076525257 is an apocalyptic number.

It is an amenable number.

1076525257 is a deficient number, since it is larger than the sum of its proper divisors (86279).

1076525257 is an equidigital number, since it uses as much as digits as its factorization.

1076525257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86278.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 1076525257 is about 32810.4443279880. Note that the first 3 decimals coincide. The cubic root of 1076525257 is about 1024.8840660469.

The spelling of 1076525257 in words is "one billion, seventy-six million, five hundred twenty-five thousand, two hundred fifty-seven".