69425257 has 4 divisors (see below), whose sum is σ = 75736656. Its totient is φ = 63113860.

The previous prime is 69425249. The next prime is 69425273. The reversal of 69425257 is 75252496.

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.

It is a cyclic number.

It is not a de Polignac number, because 69425257 - 2³ = 69425249 is a prime.

It is a super-4 number, since 4×69425257⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69425207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3155683 + ... + 3155704.

It is an arithmetic number, because the mean of its divisors is an integer number (18934164).

Almost surely, 2^69425257 is an apocalyptic number.

It is an amenable number.

69425257 is a deficient number, since it is larger than the sum of its proper divisors (6311399).

69425257 is a wasteful number, since it uses less digits than its factorization.

69425257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311398.

The product of its digits is 151200, while the sum is 40.

The square root of 69425257 is about 8332.1820071335. The cubic root of 69425257 is about 410.9974859889.

The spelling of 69425257 in words is "sixty-nine million, four hundred twenty-five thousand, two hundred fifty-seven".