7825038057 has 6 divisors (see below), whose sum is σ = 11302832762. Its totient is φ = 5216692032.

The previous prime is 7825038049. The next prime is 7825038077. The reversal of 7825038057 is 7508305287.

It can be written as a sum of positive squares in only one way, i.e., 5015614041 + 2809424016 = 70821^2 + 53004^2 .

It is not a de Polignac number, because 7825038057 - 2³ = 7825038049 is a prime.

It is a super-2 number, since 2×7825038057² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7825038077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 434724328 + ... + 434724345.

Almost surely, 2^7825038057 is an apocalyptic number.

It is an amenable number.

7825038057 is a deficient number, since it is larger than the sum of its proper divisors (3477794705).

7825038057 is a wasteful number, since it uses less digits than its factorization.

7825038057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869448679 (or 869448676 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 7825038057 is about 88459.2451753914. The cubic root of 7825038057 is about 1985.3122369412.

The spelling of 7825038057 in words is "seven billion, eight hundred twenty-five million, thirty-eight thousand, fifty-seven".