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25015314925 = 528087123731
BaseRepresentation
bin10111010011000001…
…110110100111101101
32101120100201122221101
4113103001312213231
5402212410034200
615254125003101
71543621445206
oct272301664755
971510648841
1025015314925
11a677547397
124a216b3491
1324887692c3
1412d44125ad
159b61ea26a
hex5d30769ed

25015314925 has 12 divisors (see below), whose sum is σ = 31023076896. Its totient is φ = 20009615600.

The previous prime is 25015314917. The next prime is 25015315007. The reversal of 25015314925 is 52941351052.

It is not a de Polignac number, because 25015314925 - 23 = 25015314917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140310 + ... + 264040.

It is an arithmetic number, because the mean of its divisors is an integer number (2585256408).

Almost surely, 225015314925 is an apocalyptic number.

25015314925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25015314925 is a deficient number, since it is larger than the sum of its proper divisors (6007761971).

25015314925 is a wasteful number, since it uses less digits than its factorization.

25015314925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131828 (or 131823 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

Adding to 25015314925 its reverse (52941351052), we get a palindrome (77956665977).

The spelling of 25015314925 in words is "twenty-five billion, fifteen million, three hundred fourteen thousand, nine hundred twenty-five".

Divisors: 1 5 25 8087 40435 123731 202175 618655 3093275 1000612597 5003062985 25015314925