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51441143725 = 5216271264687
BaseRepresentation
bin101111111010001000…
…011000111110101101
311220210000120212011101
4233322020120332231
51320322413044400
635344242123101
73500521335646
oct577210307655
9156700525141
1051441143725
111a8a8203724
129b77650491
134b0a4c57aa
1426bdcb26cd
15151116556a
hexbfa218fad

51441143725 has 12 divisors (see below), whose sum is σ = 63826273984. Its totient is φ = 41127588720.

The previous prime is 51441143713. The next prime is 51441143813. The reversal of 51441143725 is 52734114415.

It is not a de Polignac number, because 51441143725 - 215 = 51441110957 is a prime.

It is a super-2 number, since 2×514411437252 (a number of 22 digits) contains 22 as substring.

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, 591669 + ... + 673018.

Almost surely, 251441143725 is an apocalyptic number.

It is an amenable number.

51441143725 is a deficient number, since it is larger than the sum of its proper divisors (12385130259).

51441143725 is a wasteful number, since it uses less digits than its factorization.

51441143725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266324 (or 1266319 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The spelling of 51441143725 in words is "fifty-one billion, four hundred forty-one million, one hundred forty-three thousand, seven hundred twenty-five".

Divisors: 1 5 25 1627 8135 40675 1264687 6323435 31617175 2057645749 10288228745 51441143725