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25464997 = 171978839
BaseRepresentation
bin110000100100…
…1000010100101
31202220202102001
41201021002211
523004334442
62305445301
7426306655
oct141110245
952822361
1025464997
1113413258
128640831
135377a5c
14354c365
1523802b7
hex18490a5

25464997 has 8 divisors (see below), whose sum is σ = 28382400. Its totient is φ = 22705344.

The previous prime is 25464983. The next prime is 25465009. The reversal of 25464997 is 79946452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25464997 - 27 = 25464869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25464937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39097 + ... + 39742.

It is an arithmetic number, because the mean of its divisors is an integer number (3547800).

Almost surely, 225464997 is an apocalyptic number.

It is an amenable number.

25464997 is a deficient number, since it is larger than the sum of its proper divisors (2917403).

25464997 is a wasteful number, since it uses less digits than its factorization.

25464997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78875.

The product of its digits is 544320, while the sum is 46.

The square root of 25464997 is about 5046.2854655677. The cubic root of 25464997 is about 294.2035280666.

The spelling of 25464997 in words is "twenty-five million, four hundred sixty-four thousand, nine hundred ninety-seven".

Divisors: 1 17 19 323 78839 1340263 1497941 25464997