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55442524451 = 531439726953
BaseRepresentation
bin110011101000101000…
…011100100100100011
312022002212220001121112
4303220220130210203
51402021241240301
641245301413535
74001626452656
oct635050344443
9168085801545
1055442524451
1121570950246
12a8b370a2ab
1352c74ab7b2
14297d4a589d
1516975ae9bb
hexce8a1c923

55442524451 has 8 divisors (see below), whose sum is σ = 56527943040. Its totient is φ = 54358562752.

The previous prime is 55442524349. The next prime is 55442524477. The reversal of 55442524451 is 15442524455.

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 55442524451 - 222 = 55438330147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55442524399 and 55442524408.

It is not an unprimeable number, because it can be changed into a prime (55442520451) 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, 287210 + ... + 439743.

It is an arithmetic number, because the mean of its divisors is an integer number (7065992880).

Almost surely, 255442524451 is an apocalyptic number.

55442524451 is a deficient number, since it is larger than the sum of its proper divisors (1085418589).

55442524451 is a wasteful number, since it uses less digits than its factorization.

55442524451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728445.

The product of its digits is 640000, while the sum is 41.

The spelling of 55442524451 in words is "fifty-five billion, four hundred forty-two million, five hundred twenty-four thousand, four hundred fifty-one".

Divisors: 1 53 1439 76267 726953 38528509 1046085367 55442524451