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25083997 = 49315087
BaseRepresentation
bin101111110110…
…0000001011101
31202012101202221
41133230001131
522410141442
62253345341
7423132121
oct137540135
952171687
1025083997
1113182a84
128498251
135273503
14348d581
152307467
hex17ec05d

25083997 has 4 divisors (see below), whose sum is σ = 25094016. Its totient is φ = 25073980.

The previous prime is 25083979. The next prime is 25084019. The reversal of 25083997 is 79938052.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25083997 - 211 = 25081949 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 (25083917) 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, 2388 + ... + 7474.

It is an arithmetic number, because the mean of its divisors is an integer number (6273504).

Almost surely, 225083997 is an apocalyptic number.

It is an amenable number.

25083997 is a deficient number, since it is larger than the sum of its proper divisors (10019).

25083997 is an equidigital number, since it uses as much as digits as its factorization.

25083997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10018.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 25083997 is about 5008.3926563320. The cubic root of 25083997 is about 292.7288860324.

The spelling of 25083997 in words is "twenty-five million, eighty-three thousand, nine hundred ninety-seven".

Divisors: 1 4931 5087 25083997